chapter 3 quiz

Question 1

In general, the more complex the model, the greater the chance of:

Answer 1

overfitting the data.

Question 2

An observation about the frequency of leading digits in many real-life sets of numerical data is called:

Answer 2

Benford’s law.

Question 3

Which approach to data analytics attempts to predict a relationship between two data items?

Answer 3

Link prediction

Question 4

_____________blank is a set of data used to assess the degree and strength of a predicted relationship.

Answer 4

test data

Question 5

Which of the following best describes an unsupervised approach to the evaluation of data?

Answer 5

Data exploration looking for potential patterns of interest

Question 6

These data are organized and reside in a fixed field with a record or a file. Such data are generally contained in a relational database or spreadsheet and are readily searchable by search algorithms. The term matching this definition is:

Answer 6

structured data.

Question 7

In general, the simpler the model, the greater the chance of:

Answer 7

underfitting the data

Question 8

Models associated with regression and classification data approaches have all have these important parts except:

Answer 8

test data

Question 9

Auditing financial statements, and its desire to look for errors, anomalies, and possible fraud, is most consistent with which type of analytics?

Answer 9

Diagnostic analytics

Question 10

Which approach to data analytics attempts to assign each unit in a population into a small set of classes where the unit belongs?

Answer 10

classification