CIS 141 Mr. Lindsey Data Analytics Part 2

Which of the following is an example of a floating point variable?

14.1

What metaphor did Mr. Lindsey use while talking about algorithms during the Zoom 6 meeting?

Algorithms are like recipes.

Which of the following is an example of a "data object" for a car dealer that Mr. Lindsey talked about during the Zoom 6 meeting?

All of the above

This technique of data scrubbing is used to convert similar numeric or timestamp values into a category using a discrete integer. It is most useful in cases where the gap between numeric or timestamp information is arbitrary or over specific.

Binning

_____ variables are binary values that produce one of two set outcomes.

Boolean

The goal of _____ is to clean a dataset in preparation for machine processing. This ensures that what is fed to the algorithm is compatible and relevant for analysis.

Data scrubbing

A(n) _____ variable is expressed as a lowercase y in data science notation.

Dependent

Mr. Lindsey stressed which of the following practices to maintain the integrity of one's source data during the Zoom 6 meeting.

Do your work on a copy of your data, not the original.

Adding more data to an analytics model is always a precursor to a deeper level of insight and understanding.

False

Discrete variables are infinite and compatible with mathematical operations such as addition, subtraction, division, etc.

False

What metaphor did Mr. Lindsey use when introducing the "variable selection" technique of data scrubbing during the Zoom 6 meeting?

Finding a needle in a hay stack

A(n) _____ variable is expressed as an uppercase X in data science notation.

Independent

In data analytics, the _____ variables act as input and the _____ variable as the output.

Independent, dependent

This type of variable is a whole number.

Integer

What metaphor did Mr. Lindsey use when introducing the topic data scrubbing during the Zoom 6 meeting?

Making coconut shrimp

This technique of data scrubbing attempts to limit the number of variables fed to an analytics model based on relevancy.

Merging variables

Nominal comes from the Latin word for _____.

Name

The maximum number of variables that one can plot on a scatterplot is _____.

None of the above

Oliver Theobald contrasts data and oil in the "Variables" chapter of the analytics book. Which of the following is a difference that he identifies.

Oil loses its value when it is used while data gets more valuable with use.

This technique of data scrubbing transforms discrete variables into a binary format, represented as "1" or "0" (or True or False).

One-hot encoding

This type of variable compares two items numerically. For example, the number of Hilltopper fans to Wildcat fans at WKU is 7:2.

Ratio

Which of the following is an example of an ordinal variable?

Third

Oliver Theobald writes that data scrubbing is _____.

Time consuming

Discrete variables have a finite value and cannot be aggregated or mathematically manipulated with other variable observations.

True

Per Oliver Theobald, _____ help to distinguish contrasting qualities between data objects, such as age, gender, and height.

Variables