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Chapter 12: Q.AP4.7 - Cumulative AP Practise Test (page 828)

Which of the following is a categorical variable?

a. The weight of an automobile

b. The time required to complete the Olympic marathon

c. The fuel efficiency (in miles per gallon) of a hybrid car

d. The brand of shampoo purchased by shoppers in a grocery store

e. The closing price of a particular stock on the New York Stock Exchange

Short Answer

Expert verified

A categorical variable is option

d. The brand of shampoo purchased by shoppers in a grocery store .

Step by step solution

01

Given information 

Given in the question that, We need to find the a categorical variable from the options.

02

Explanation

The town council wants to know how many adults live in their community. A categorical variable categorises an individual, whereas a quantitative variable is a numerical quantity.

As a result, it is a quantitative variable in option (a) because the weight has numerical values.

It is a quantitative variable in option (b) since time has numerical values.

It is a quantitative variable in option (c) because the fuel efficiency has a numerical value.

Because the brands are not numerical, option (d) is a categorical variable.

It is a quantitative variable in option (e) since the closing price has numerical values.

As a result, option (d) is the proper choice.

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