{"id":1951,"date":"2025-12-07T09:13:48","date_gmt":"2025-12-07T09:13:48","guid":{"rendered":"https:\/\/exam.real4prep.com\/?p=1951"},"modified":"2025-12-07T09:13:48","modified_gmt":"2025-12-07T09:13:48","slug":"easily-to-pass-new-emc-d-ds-fn-23-dumps-with-358-questions-q180-q195","status":"publish","type":"post","link":"https:\/\/exam.real4prep.com\/de\/2025\/12\/07\/easily-to-pass-new-emc-d-ds-fn-23-dumps-with-358-questions-q180-q195\/","title":{"rendered":"Easily To Pass New EMC D-DS-FN-23 Dumps with 358 Questions [Q180-Q195]"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    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  <\/div>\n<p><strong><span style=\"font-size: 18px;color: red\">Easily To Pass New EMC D-DS-FN-23 Dumps with 358 Questions<\/span><\/strong><\/p>\n<p><strong><span style=\"color: red\">Latest D-DS-FN-23 Study Guides 2025 &#8211; With Test Engine PDF<\/span><\/strong><\/p>\n<div id=\"watu_quiz\" class=\"quiz-area single-page-quiz\">\n<form action=\"\" method=\"post\" class=\"quiz-form \" id=\"quiz-794\" >\n<div class='watu-question' id='question-1'><div class='question-content'><p><strong>NO.180<\/strong> Before you build an ARMA model, how can you tell if your time series is weakly stationary?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15604' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60529' \/><div class='watu-question-choice'><input type='radio' name='answer-15604[]' id='answer-id-60529' class='answer answer-1 php-answer-label answerof-15604' value='60529' \/>&nbsp;<label for='answer-id-60529' id='answer-label-60529' class='php-answer-label answer label-1'><span class='answer'>There appears to be a constant variance around a constant mean.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60530' \/><div class='watu-question-choice'><input type='radio' name='answer-15604[]' id='answer-id-60530' class='answer answer-1 js-answer-label answerof-15604' value='60530' \/>&nbsp;<label for='answer-id-60530' id='answer-label-60530' class='js-answer-label answer label-1'><span class='answer'>The mean of the series is close to 0.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60531' \/><div class='watu-question-choice'><input type='radio' name='answer-15604[]' id='answer-id-60531' class='answer answer-1 js-answer-label answerof-15604' value='60531' \/>&nbsp;<label for='answer-id-60531' id='answer-label-60531' class='js-answer-label answer label-1'><span class='answer'>The series is normally distributed.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60532' \/><div class='watu-question-choice'><input type='radio' name='answer-15604[]' id='answer-id-60532' class='answer answer-1 js-answer-label answerof-15604' value='60532' \/>&nbsp;<label for='answer-id-60532' id='answer-label-60532' class='js-answer-label answer label-1'><span class='answer'>There appears to be no apparent trend component.<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(1,this)' id='btn-1' value='See Answer'  \/><input type='hidden' id='questionType1' value='radio' class=''><\/div><div class='watu-question' id='question-2'><div class='question-content'><p><strong>NO.181<\/strong> What is a core deliverable at the end of the analytic project?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15605' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60533' \/><div class='watu-question-choice'><input type='radio' name='answer-15605[]' id='answer-id-60533' class='answer answer-2 js-answer-label answerof-15605' value='60533' \/>&nbsp;<label for='answer-id-60533' id='answer-label-60533' class='js-answer-label answer label-2'><span class='answer'>An implemented database design<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60534' \/><div class='watu-question-choice'><input type='radio' name='answer-15605[]' id='answer-id-60534' class='answer answer-2 js-answer-label answerof-15605' value='60534' \/>&nbsp;<label for='answer-id-60534' id='answer-label-60534' class='js-answer-label answer label-2'><span class='answer'>A whitepaper describing the project and the implementation<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60535' \/><div class='watu-question-choice'><input type='radio' name='answer-15605[]' id='answer-id-60535' class='answer answer-2 php-answer-label answerof-15605' value='60535' \/>&nbsp;<label for='answer-id-60535' id='answer-label-60535' class='php-answer-label answer label-2'><span class='answer'>A presentation for project sponsors<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60536' \/><div class='watu-question-choice'><input type='radio' name='answer-15605[]' id='answer-id-60536' class='answer answer-2 js-answer-label answerof-15605' value='60536' \/>&nbsp;<label for='answer-id-60536' id='answer-label-60536' class='js-answer-label answer label-2'><span class='answer'>The training materials<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(2,this)' id='btn-2' value='See Answer'  \/><input type='hidden' id='questionType2' value='radio' class=''><\/div><div class='watu-question' id='question-3'><div class='question-content'><p><strong>NO.182<\/strong> Which chart type is intended to display correlations between sets of numeric data?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15606' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60537' \/><div class='watu-question-choice'><input type='radio' name='answer-15606[]' id='answer-id-60537' class='answer answer-3 php-answer-label answerof-15606' value='60537' \/>&nbsp;<label for='answer-id-60537' id='answer-label-60537' class='php-answer-label answer label-3'><span class='answer'>Scatterplot<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60538' \/><div class='watu-question-choice'><input type='radio' name='answer-15606[]' id='answer-id-60538' class='answer answer-3 js-answer-label answerof-15606' value='60538' \/>&nbsp;<label for='answer-id-60538' id='answer-label-60538' class='js-answer-label answer label-3'><span class='answer'>Histogram<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60539' \/><div class='watu-question-choice'><input type='radio' name='answer-15606[]' id='answer-id-60539' class='answer answer-3 js-answer-label answerof-15606' value='60539' \/>&nbsp;<label for='answer-id-60539' id='answer-label-60539' class='js-answer-label answer label-3'><span class='answer'>Pie chart<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60540' \/><div class='watu-question-choice'><input type='radio' name='answer-15606[]' id='answer-id-60540' class='answer answer-3 js-answer-label answerof-15606' value='60540' \/>&nbsp;<label for='answer-id-60540' id='answer-label-60540' class='js-answer-label answer label-3'><span class='answer'>Line Chart<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(3,this)' id='btn-3' value='See Answer'  \/><input type='hidden' id='questionType3' value='radio' class=''><\/div><div class='watu-question' id='question-4'><div class='question-content'><p><strong>NO.183<\/strong> A study was run to identify general dietary patterns among the residents of a small town. Twelve thousand people were surveyed and the data was subject to K-means clustering.<br \/>In one of the iterations, there were six clusters formed with 38, 1560, 1799, 2560, 2893, and 3150 respondents.<br \/>What should be the next step in identifying optimal clusters?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15607' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60541' \/><div class='watu-question-choice'><input type='radio' name='answer-15607[]' id='answer-id-60541' class='answer answer-4 js-answer-label answerof-15607' value='60541' \/>&nbsp;<label for='answer-id-60541' id='answer-label-60541' class='js-answer-label answer label-4'><span class='answer'>Add more categorical variables to the dataset to maximize the Within Sum of Squares (WSS) value for K=6<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60542' \/><div class='watu-question-choice'><input type='radio' name='answer-15607[]' id='answer-id-60542' class='answer answer-4 php-answer-label answerof-15607' value='60542' \/>&nbsp;<label for='answer-id-60542' id='answer-label-60542' class='php-answer-label answer label-4'><span class='answer'>Determine the optimal number of clusters by plotting the Within Sum of Squares (WSS) values as a function of K<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60543' \/><div class='watu-question-choice'><input type='radio' name='answer-15607[]' id='answer-id-60543' class='answer answer-4 js-answer-label answerof-15607' value='60543' \/>&nbsp;<label for='answer-id-60543' id='answer-label-60543' class='js-answer-label answer label-4'><span class='answer'>Remove 38 respondents because the 5 clusters seem to be well distributed<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60544' \/><div class='watu-question-choice'><input type='radio' name='answer-15607[]' id='answer-id-60544' class='answer answer-4 js-answer-label answerof-15607' value='60544' \/>&nbsp;<label for='answer-id-60544' id='answer-label-60544' class='js-answer-label answer label-4'><span class='answer'>Multiply each variable by its standard deviation<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(4,this)' id='btn-4' value='See Answer'  \/><input type='hidden' id='questionType4' value='radio' class=''><\/div><div class='watu-question' id='question-5'><div class='question-content'><p><strong>NO.184<\/strong> Imagine you are trying to hire a Data Scientist for your team. In addition to technical ability and quantitative background, which additional essential trait would you look for in people applying for this position?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15608' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60545' \/><div class='watu-question-choice'><input type='radio' name='answer-15608[]' id='answer-id-60545' class='answer answer-5 php-answer-label answerof-15608' value='60545' \/>&nbsp;<label for='answer-id-60545' id='answer-label-60545' class='php-answer-label answer label-5'><span class='answer'>Communication skill<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60546' \/><div class='watu-question-choice'><input type='radio' name='answer-15608[]' id='answer-id-60546' class='answer answer-5 js-answer-label answerof-15608' value='60546' \/>&nbsp;<label for='answer-id-60546' id='answer-label-60546' class='js-answer-label answer label-5'><span class='answer'>Scientific background<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60547' \/><div class='watu-question-choice'><input type='radio' name='answer-15608[]' id='answer-id-60547' class='answer answer-5 js-answer-label answerof-15608' value='60547' \/>&nbsp;<label for='answer-id-60547' id='answer-label-60547' class='js-answer-label answer label-5'><span class='answer'>Domain expertise<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60548' \/><div class='watu-question-choice'><input type='radio' name='answer-15608[]' id='answer-id-60548' class='answer answer-5 js-answer-label answerof-15608' value='60548' \/>&nbsp;<label for='answer-id-60548' id='answer-label-60548' class='js-answer-label answer label-5'><span class='answer'>Well Organized<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(5,this)' id='btn-5' value='See Answer'  \/><input type='hidden' id='questionType5' value='radio' class=''><\/div><div class='watu-question' id='question-6'><div class='question-content'><p><strong>NO.185<\/strong> In the Map Reduce framework, what is the purpose of the Reduce function?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15609' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60549' \/><div class='watu-question-choice'><input type='radio' name='answer-15609[]' id='answer-id-60549' class='answer answer-6 php-answer-label answerof-15609' value='60549' \/>&nbsp;<label for='answer-id-60549' id='answer-label-60549' class='php-answer-label answer label-6'><span class='answer'>It aggregates the results of the Map function and generates processed output<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60550' \/><div class='watu-question-choice'><input type='radio' name='answer-15609[]' id='answer-id-60550' class='answer answer-6 js-answer-label answerof-15609' value='60550' \/>&nbsp;<label for='answer-id-60550' id='answer-label-60550' class='js-answer-label answer label-6'><span class='answer'>It distributes the input to multiple nodes for processing<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60551' \/><div class='watu-question-choice'><input type='radio' name='answer-15609[]' id='answer-id-60551' class='answer answer-6 js-answer-label answerof-15609' value='60551' \/>&nbsp;<label for='answer-id-60551' id='answer-label-60551' class='js-answer-label answer label-6'><span class='answer'>It writes the output of the Map function to storage<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60552' \/><div class='watu-question-choice'><input type='radio' name='answer-15609[]' id='answer-id-60552' class='answer answer-6 js-answer-label answerof-15609' value='60552' \/>&nbsp;<label for='answer-id-60552' id='answer-label-60552' class='js-answer-label answer label-6'><span class='answer'>It breaks the input into smaller components and distributes to other nodes in the cluster<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(6,this)' id='btn-6' value='See Answer'  \/><input type='hidden' id='questionType6' value='radio' class=''><\/div><div class='watu-question' id='question-7'><div class='question-content'><p><strong>NO.186<\/strong> Which key role for a successful analytic project can provide business domain expertise with a deep understanding of the data and key performance indicators?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15610' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60553' \/><div class='watu-question-choice'><input type='radio' name='answer-15610[]' id='answer-id-60553' class='answer answer-7 php-answer-label answerof-15610' value='60553' \/>&nbsp;<label for='answer-id-60553' id='answer-label-60553' class='php-answer-label answer label-7'><span class='answer'>Business Intelligence Analyst<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60554' \/><div class='watu-question-choice'><input type='radio' name='answer-15610[]' id='answer-id-60554' class='answer answer-7 js-answer-label answerof-15610' value='60554' \/>&nbsp;<label for='answer-id-60554' id='answer-label-60554' class='js-answer-label answer label-7'><span class='answer'>Project Manager<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60555' \/><div class='watu-question-choice'><input type='radio' name='answer-15610[]' id='answer-id-60555' class='answer answer-7 js-answer-label answerof-15610' value='60555' \/>&nbsp;<label for='answer-id-60555' id='answer-label-60555' class='js-answer-label answer label-7'><span class='answer'>Project Sponsor<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60556' \/><div class='watu-question-choice'><input type='radio' name='answer-15610[]' id='answer-id-60556' class='answer answer-7 js-answer-label answerof-15610' value='60556' \/>&nbsp;<label for='answer-id-60556' id='answer-label-60556' class='js-answer-label answer label-7'><span class='answer'>Business User<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(7,this)' id='btn-7' value='See Answer'  \/><input type='hidden' id='questionType7' value='radio' class=''><\/div><div class='watu-question' id='question-8'><div class='question-content'><p><strong>NO.187<\/strong> In addition to quantitative and technical skills, what is a key aspect of the profile of a data scientist?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15611' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60557' \/><div class='watu-question-choice'><input type='radio' name='answer-15611[]' id='answer-id-60557' class='answer answer-8 js-answer-label answerof-15611' value='60557' \/>&nbsp;<label for='answer-id-60557' id='answer-label-60557' class='js-answer-label answer label-8'><span class='answer'>Project management and administrative skills<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60558' \/><div class='watu-question-choice'><input type='radio' name='answer-15611[]' id='answer-id-60558' class='answer answer-8 js-answer-label answerof-15611' value='60558' \/>&nbsp;<label for='answer-id-60558' id='answer-label-60558' class='js-answer-label answer label-8'><span class='answer'>Proficient in Microsoft Project and Excel<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60559' \/><div class='watu-question-choice'><input type='radio' name='answer-15611[]' id='answer-id-60559' class='answer answer-8 php-answer-label answerof-15611' value='60559' \/>&nbsp;<label for='answer-id-60559' id='answer-label-60559' class='php-answer-label answer label-8'><span class='answer'>Skeptical and critical thinking<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60560' \/><div class='watu-question-choice'><input type='radio' name='answer-15611[]' id='answer-id-60560' class='answer answer-8 js-answer-label answerof-15611' value='60560' \/>&nbsp;<label for='answer-id-60560' id='answer-label-60560' class='js-answer-label answer label-8'><span class='answer'>Accounting and regulatory skills<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'>A key aspect of a data scientist&#8217;s profile is skeptical and critical thinking, which helps in questioning assumptions, validating data, and interpreting results accurately to ensure sound analysis and decision-making.<\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(8,this)' id='btn-8' value='See Answer'  \/><input type='hidden' id='questionType8' value='radio' class=''><\/div><div class='watu-question' id='question-9'><div class='question-content'><p><strong>NO.188<\/strong> In addition to less data movement and the ability to use larger datasets in calculations, what is a benefit of analytical calculations in a database?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15612' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60561' \/><div class='watu-question-choice'><input type='radio' name='answer-15612[]' id='answer-id-60561' class='answer answer-9 php-answer-label answerof-15612' value='60561' \/>&nbsp;<label for='answer-id-60561' id='answer-label-60561' class='php-answer-label answer label-9'><span class='answer'>quicker time to insight<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60562' \/><div class='watu-question-choice'><input type='radio' name='answer-15612[]' id='answer-id-60562' class='answer answer-9 js-answer-label answerof-15612' value='60562' \/>&nbsp;<label for='answer-id-60562' id='answer-label-60562' class='js-answer-label answer label-9'><span class='answer'>more efficient handling of categorical values<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60563' \/><div class='watu-question-choice'><input type='radio' name='answer-15612[]' id='answer-id-60563' class='answer answer-9 js-answer-label answerof-15612' value='60563' \/>&nbsp;<label for='answer-id-60563' id='answer-label-60563' class='js-answer-label answer label-9'><span class='answer'>improved connections between disparate data sources<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60564' \/><div class='watu-question-choice'><input type='radio' name='answer-15612[]' id='answer-id-60564' class='answer answer-9 js-answer-label answerof-15612' value='60564' \/>&nbsp;<label for='answer-id-60564' id='answer-label-60564' class='js-answer-label answer label-9'><span class='answer'>full use of data aggregation functionality<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(9,this)' id='btn-9' value='See Answer'  \/><input type='hidden' id='questionType9' value='radio' class=''><\/div><div class='watu-question' id='question-10'><div class='question-content'><p><strong>NO.189<\/strong> Which component of a final presentation focuses on how to deploy the model?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15613' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60565' \/><div class='watu-question-choice'><input type='radio' name='answer-15613[]' id='answer-id-60565' class='answer answer-10 php-answer-label answerof-15613' value='60565' \/>&nbsp;<label for='answer-id-60565' id='answer-label-60565' class='php-answer-label answer label-10'><span class='answer'>Recommendations<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60566' \/><div class='watu-question-choice'><input type='radio' name='answer-15613[]' id='answer-id-60566' class='answer answer-10 js-answer-label answerof-15613' value='60566' \/>&nbsp;<label for='answer-id-60566' id='answer-label-60566' class='js-answer-label answer label-10'><span class='answer'>Approach<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60567' \/><div class='watu-question-choice'><input type='radio' name='answer-15613[]' id='answer-id-60567' class='answer answer-10 js-answer-label answerof-15613' value='60567' \/>&nbsp;<label for='answer-id-60567' id='answer-label-60567' class='js-answer-label answer label-10'><span class='answer'>Project goals<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60568' \/><div class='watu-question-choice'><input type='radio' name='answer-15613[]' id='answer-id-60568' class='answer answer-10 js-answer-label answerof-15613' value='60568' \/>&nbsp;<label for='answer-id-60568' id='answer-label-60568' class='js-answer-label answer label-10'><span class='answer'>Executive summary<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(10,this)' id='btn-10' value='See Answer'  \/><input type='hidden' id='questionType10' value='radio' class=''><\/div><div class='watu-question' id='question-11'><div class='question-content'><p><strong>NO.190<\/strong> You have been assigned to perform a study of the daily revenue effect of a pricing model of online transactions. All data currently available to you has been loaded into your analytics database. This includes revenue data, pricing data, and online transaction data.<br \/>You discover that all data comes in different levels of granularity. The transaction data has timestamps consisting of day, hour, minutes, and seconds. Pricing is stored at the daily level and revenue data is only reported monthly.<br \/>What is the next step?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15614' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60569' \/><div class='watu-question-choice'><input type='radio' name='answer-15614[]' id='answer-id-60569' class='answer answer-11 php-answer-label answerof-15614' value='60569' \/>&nbsp;<label for='answer-id-60569' id='answer-label-60569' class='php-answer-label answer label-11'><span class='answer'>Report back to the business owner that the current data model does not support the business question.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60570' \/><div class='watu-question-choice'><input type='radio' name='answer-15614[]' id='answer-id-60570' class='answer answer-11 js-answer-label answerof-15614' value='60570' \/>&nbsp;<label for='answer-id-60570' id='answer-label-60570' class='js-answer-label answer label-11'><span class='answer'>Interpolate a daily model for revenue from the monthly revenue data.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60571' \/><div class='watu-question-choice'><input type='radio' name='answer-15614[]' id='answer-id-60571' class='answer answer-11 js-answer-label answerof-15614' value='60571' \/>&nbsp;<label for='answer-id-60571' id='answer-label-60571' class='js-answer-label answer label-11'><span class='answer'>Aggregate all data to the monthly level in order to create a monthly revenue model.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60572' \/><div class='watu-question-choice'><input type='radio' name='answer-15614[]' id='answer-id-60572' class='answer answer-11 js-answer-label answerof-15614' value='60572' \/>&nbsp;<label for='answer-id-60572' id='answer-label-60572' class='js-answer-label answer label-11'><span class='answer'>Disregard revenue as the key reason in the pricing model and create a daily model based on pricing and transactions only.<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(11,this)' id='btn-11' value='See Answer'  \/><input type='hidden' id='questionType11' value='radio' class=''><\/div><div class='watu-question' id='question-12'><div class='question-content'><p><strong>NO.191<\/strong> What is a good use case for logistic regression?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15615' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60573' \/><div class='watu-question-choice'><input type='radio' name='answer-15615[]' id='answer-id-60573' class='answer answer-12 js-answer-label answerof-15615' value='60573' \/>&nbsp;<label for='answer-id-60573' id='answer-label-60573' class='js-answer-label answer label-12'><span class='answer'>Forecasting quarterly sales of a company<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60574' \/><div class='watu-question-choice'><input type='radio' name='answer-15615[]' id='answer-id-60574' class='answer answer-12 js-answer-label answerof-15615' value='60574' \/>&nbsp;<label for='answer-id-60574' id='answer-label-60574' class='js-answer-label answer label-12'><span class='answer'>Predicting the income of a customer<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60575' \/><div class='watu-question-choice'><input type='radio' name='answer-15615[]' id='answer-id-60575' class='answer answer-12 php-answer-label answerof-15615' value='60575' \/>&nbsp;<label for='answer-id-60575' id='answer-label-60575' class='php-answer-label answer label-12'><span class='answer'>Predicting the outcome of an election<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60576' \/><div class='watu-question-choice'><input type='radio' name='answer-15615[]' id='answer-id-60576' class='answer answer-12 js-answer-label answerof-15615' value='60576' \/>&nbsp;<label for='answer-id-60576' id='answer-label-60576' class='js-answer-label answer label-12'><span class='answer'>Predicting home sales prices in a city<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(12,this)' id='btn-12' value='See Answer'  \/><input type='hidden' id='questionType12' value='radio' class=''><\/div><div class='watu-question' id='question-13'><div class='question-content'><p><strong>NO.192<\/strong> What is holdout data?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15616' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60577' \/><div class='watu-question-choice'><input type='radio' name='answer-15616[]' id='answer-id-60577' class='answer answer-13 php-answer-label answerof-15616' value='60577' \/>&nbsp;<label for='answer-id-60577' id='answer-label-60577' class='php-answer-label answer label-13'><span class='answer'>a subset of the provided data set selected at random and used to validate the model<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60578' \/><div class='watu-question-choice'><input type='radio' name='answer-15616[]' id='answer-id-60578' class='answer answer-13 js-answer-label answerof-15616' value='60578' \/>&nbsp;<label for='answer-id-60578' id='answer-label-60578' class='js-answer-label answer label-13'><span class='answer'>a subset of the provided data set selected at random and used to initially construct the model<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60579' \/><div class='watu-question-choice'><input type='radio' name='answer-15616[]' id='answer-id-60579' class='answer answer-13 js-answer-label answerof-15616' value='60579' \/>&nbsp;<label for='answer-id-60579' id='answer-label-60579' class='js-answer-label answer label-13'><span class='answer'>a subset of the provided data set that is removed by the data scientist because it contains data errors<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60580' \/><div class='watu-question-choice'><input type='radio' name='answer-15616[]' id='answer-id-60580' class='answer answer-13 js-answer-label answerof-15616' value='60580' \/>&nbsp;<label for='answer-id-60580' id='answer-label-60580' class='js-answer-label answer label-13'><span class='answer'>a subset of the provided data set that is removed by the data scientist because it contains outliers<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(13,this)' id='btn-13' value='See Answer'  \/><input type='hidden' id='questionType13' value='radio' class=''><\/div><div class='watu-question' id='question-14'><div class='question-content'><p><strong>NO.193<\/strong> A call center for a large electronics company handles an average of 35, 000 support calls a day. The head of the call center would like to optimize the staffing of the call center during the rollout of a new product due to recent customer complaints of long wait times.<br \/>You have been asked to create a model to optimize call center costs and customer wait times.<br \/>The goals for this project include:<br \/>1. Relative to the release of a product, how does the call volume change over time?<br \/>2. How to best optimize staffing based on the call volume for the newly released product, relative to old products.<br \/>3. Historically, what time of day does the call center need to be most heavily staffed?<br \/>4. Determine the frequency of calls by both product type and customer language.<br \/>Which goals are suitable to be completed with MapReduce?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15617' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60581' \/><div class='watu-question-choice'><input type='radio' name='answer-15617[]' id='answer-id-60581' class='answer answer-14 php-answer-label answerof-15617' value='60581' \/>&nbsp;<label for='answer-id-60581' id='answer-label-60581' class='php-answer-label answer label-14'><span class='answer'>Goal 2 and 4<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60582' \/><div class='watu-question-choice'><input type='radio' name='answer-15617[]' id='answer-id-60582' class='answer answer-14 js-answer-label answerof-15617' value='60582' \/>&nbsp;<label for='answer-id-60582' id='answer-label-60582' class='js-answer-label answer label-14'><span class='answer'>Goal 1 and 3<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60583' \/><div class='watu-question-choice'><input type='radio' name='answer-15617[]' id='answer-id-60583' class='answer answer-14 js-answer-label answerof-15617' value='60583' \/>&nbsp;<label for='answer-id-60583' id='answer-label-60583' class='js-answer-label answer label-14'><span class='answer'>Goals 1, 2, 3, 4<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60584' \/><div class='watu-question-choice'><input type='radio' name='answer-15617[]' id='answer-id-60584' class='answer answer-14 js-answer-label answerof-15617' value='60584' \/>&nbsp;<label for='answer-id-60584' id='answer-label-60584' class='js-answer-label answer label-14'><span class='answer'>Goals 2, 3, 4<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(14,this)' id='btn-14' value='See Answer'  \/><input type='hidden' id='questionType14' value='radio' class=''><\/div><div class='watu-question' id='question-15'><div class='question-content'><p><strong>NO.194<\/strong> On analyzing your time series data you suspect that the data represented as y1, y2, y3, &#8230; , yn-1, yn may have a trend component that is quadratic in nature.<br \/>Which pattern of data will indicate that the trend in the time series data is quadratic in nature?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15618' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60585' \/><div class='watu-question-choice'><input type='radio' name='answer-15618[]' id='answer-id-60585' class='answer answer-15 php-answer-label answerof-15618' value='60585' \/>&nbsp;<label for='answer-id-60585' id='answer-label-60585' class='php-answer-label answer label-15'><span class='answer'>(y3-y2) &#8211; (y2-y1) = &#8230;&#8230;&#8230;= (yn-yn-1)-(yn-1-yn-2)<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60586' \/><div class='watu-question-choice'><input type='radio' name='answer-15618[]' id='answer-id-60586' class='answer answer-15 js-answer-label answerof-15618' value='60586' \/>&nbsp;<label for='answer-id-60586' id='answer-label-60586' class='js-answer-label answer label-15'><span class='answer'>(y2-y1) = (y3-y2) = &#8230;&#8230;. = (yn-yn-1)<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60587' \/><div class='watu-question-choice'><input type='radio' name='answer-15618[]' id='answer-id-60587' class='answer answer-15 js-answer-label answerof-15618' value='60587' \/>&nbsp;<label for='answer-id-60587' id='answer-label-60587' class='js-answer-label answer label-15'><span class='answer'>((y2-y1) \/y1 ) * 100% = &#8230;&#8230;.((yn-yn-1)\/yn-1) * 100%<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60588' \/><div class='watu-question-choice'><input type='radio' name='answer-15618[]' id='answer-id-60588' class='answer answer-15 js-answer-label answerof-15618' value='60588' \/>&nbsp;<label for='answer-id-60588' id='answer-label-60588' class='js-answer-label answer label-15'><span class='answer'>(y4-y2) &#8211; (y3-y1) = &#8230;&#8230;&#8230;= (yn-yn-2)-(yn-1-yn-3)<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(15,this)' id='btn-15' value='See Answer'  \/><input type='hidden' id='questionType15' value='radio' class=''><\/div><div class='watu-question' id='question-16'><div class='question-content'><p><strong>NO.195<\/strong> A disk drive manufacturer has a defect rate of less than 1.0% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units.<br \/>Which action should the team recommend?<\/p>\n<\/div><input type='hidden' name='question_id[]' value='15619' \/><div class='watu-questions-wrap '><input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60589' \/><div class='watu-question-choice'><input type='radio' name='answer-15619[]' id='answer-id-60589' class='answer answer-16 php-answer-label answerof-15619' value='60589' \/>&nbsp;<label for='answer-id-60589' id='answer-label-60589' class='php-answer-label answer label-16'><span class='answer'>The manufacturing process should be inspected for problems.<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60590' \/><div class='watu-question-choice'><input type='radio' name='answer-15619[]' id='answer-id-60590' class='answer answer-16 js-answer-label answerof-15619' value='60590' \/>&nbsp;<label for='answer-id-60590' id='answer-label-60590' class='js-answer-label answer label-16'><span class='answer'>A larger sample size should be taken to determine if the plant is functioning properly<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60591' \/><div class='watu-question-choice'><input type='radio' name='answer-15619[]' id='answer-id-60591' class='answer answer-16 js-answer-label answerof-15619' value='60591' \/>&nbsp;<label for='answer-id-60591' id='answer-label-60591' class='js-answer-label answer label-16'><span class='answer'>A smaller sample size should be taken to determine if the plant is functioning properly<\/span><\/label><\/div>\n<input type='hidden' name='answer_ids[]' class='watu-answer-ids' value='60592' \/><div class='watu-question-choice'><input type='radio' name='answer-15619[]' id='answer-id-60592' class='answer answer-16 js-answer-label answerof-15619' value='60592' \/>&nbsp;<label for='answer-id-60592' id='answer-label-60592' class='js-answer-label answer label-16'><span class='answer'>The manufacturing process is functioning properly and no further action is required.<\/span><\/label><\/div>\n<\/div><div class='show-question-feedback' style='display:none;'><\/div><input type='button' class='showchecked' style='margin: 10px 0;' onclick='showanswer1(16,this)' id='btn-16' value='See Answer'  \/><input type='hidden' id='questionType16' value='radio' class=''><\/div><div style='display:none' id='question-17'><br \/><div class='question-content'><img decoding=\"async\" src=\"https:\/\/exam.real4prep.com\/wp-content\/plugins\/watu\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading ...\" title=\"Loading ...\" \/>&nbsp;Loading &#8230;<\/div><\/div><br \/>\n<input type=\"button\" name=\"action\" onclick=\"Watu.submitResult()\" id=\"action-button\" style=\"margin:0 auto 20px auto;\" value=\"View Results\"  class=\"watu-submit-button\" \/>\n<input type=\"hidden\" name=\"no_ajax\" value=\"0\"><input 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