Question

For the following exercises, identify the type of data that would be used to describe a response (quantitative discrete, quantitative continuous, or qualitative), and give an example of the data.

12. number of tickets sold to a concert

13. percent of body fat

14. favorite baseball team

15. time in line to buy groceries

16. number of students enrolled at Evergreen Valley College

17. most-watched television show

18. brand of toothpaste

19. distance to the closest movie theatre

20. age of executives in Fortune 500 companies

21. number of competing computer

spreadsheet software packages

Answer 1

Numerical variables/quantitative

The values of a numerical variable are numbers. They can be further classified into discrete and continuous variables.

Discrete numerical variable

A variable whose values are whole numbers (counts) is called discrete. For example, the number of items bought by a customer in a supermarket is discrete.

Continuous numerical variable

A variable that may contain any value within some range is called continuous. For example, the time that the customer spends in the supermarket is continuous.

Categorical variables / qualitative

The values of a categorical variable are selected from a small group of categories. Examples are gender (male or female) and marital status (never married, married, divorced or widowed).

quantitative discrete

12 ,16,21

quantitative continuous

13,15,19,20,

qualitative

14,17,18,