BUAN 4310 Midterm Questions and Answers Already Passed
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Course
BUAN 4310
Institution
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...
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
2
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