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BUAN 4310 Midterm Questions and Answers Already Passed

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  • BUAN 4310

BUAN 4310 Midterm Questions and Answers Already Passed What part of the data mining process takes the most time? Exploratory Data Analysis The purpose of sampling is to _____________________. Obtain sufficient information to draw a valid inference about a population. In data mining, cl...

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  • August 13, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BUAN 4310
  • BUAN 4310
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BUAN 4310 Midterm Questions and
Answers Already Passed
What part of the data mining process takes the most time? ✔✔Exploratory Data Analysis




The purpose of sampling is to _____________________. ✔✔Obtain sufficient information to

draw a valid inference about a population.




In data mining, classification is _______________________. ✔✔a division of a set of examples

into a number of categories.




What is one appropriate strategy when the data set is too small for partitioning? ✔✔Cross-

validation




Unsupervised or supervised learning?




Automated sorting of mail by scanning envelopes to identify the zip code that is written in the

address. ✔✔Supervised




1

, Is this statement true?




"Predictive analytics utilise both classification and prediction models" ✔✔True.




Which type of data allows for meaningful comparison of ranges, averages and other statistics?

✔✔Interval data




True or false?




An outlier is an observation that is "extreme", being distant from the rest of the data. ✔✔True




Which of the following is a disadvantage of ordinal data? ✔✔They have no fixed units of

measurement.




Which of the following are likely causes of overfitting?




(i) Too many predictors

(ii) Too many parameters



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