QUESTION 1

1.Polar bears, brown bears, black bears, and panda bears would be best described as an example of:

Ordinal data

Interval data

Ratio data

Nominal data

QUESTION 2

1.________ is existing data that have been manually evaluated and assigned a class. ________ is existing data used to evaluate the model.

Test data; Training data

Structured data; Unstructured data

Unstructured data; Structured data

Training data; Test data

QUESTION 3

1.Data visualizations should not be used to satisfy an exploratory purpose.

True

False

QUESTION 4

1.If you are comparing two datasets that follow the normal distribution, even if the two datasets have very different means, you can still compare them by standardizing the distributions with Zscores.

True

False

QUESTION 5

1.After completing your data analysis, the write-up should include a discussion of which of the following:

All steps of the IMPACT model

Only the steps of the IMPACT model your client will understand

All steps of the IMPACT model your client will understand

Only the steps of the IMPACT model you consider important

QUESTION 6

1.The following are typical examples of ordinal dataexcept:

Education level

Blood type

Political affiliation

Letter grade

QUESTION 7

1.Which approach to data analytics attempts to discover associations between individuals based on transactions involving them?

Co-occurrence grouping

Regression

Classification

Similarity matching

QUESTION 8

1.________ states that in many naturally occurring collections of numbers, the leading significant digit is likely to be small.

Leading digits hypothesis

Classification

Moore's law

Benford's law

1.XBRL is a global standard for exchanging financial reporting information that uses XML.

True

False

QUESTION 10

1.________ is more complex than ________.

Training data; test data

Quantitative data; qualitative data

Test data; training data

Qualitative data; quantitative data

QUESTION 11

1.Link prediction is a data approach used to estimate or predict, for each unit, the numerical value of some variable using some type of statistical model.

True

False

QUESTION 12

1.Clustering is a data approach used to divide individuals into groups in a useful or meaningful way.

True

False

QUESTION 13

1.Data profiling is used to assess data quality and internal controls. It typically involves the following stepsexcept:

Filter the results.

Set boundaries or thresholds for the activity.

Identify the objects or activity you want to profile.

Determine the types of profiling you want to perform.

QUESTION 14

1.Declarative visualizations are the product of wanting to declare or present your findings to an audience.

True

False