Exercise 8 Page 367

Before classifying the data as qualitative or quantitative, let's recall the definitions of these classifications.

	Types of Data	Description
Can It Be Measured?	Qualitative	Describes a category and cannot be measured or numerically compared.
Can It Be Measured?	Quantitative	Has units and can be measured and numerically compared.

Let's now consider our data set.

street addresses in a phone book

Street addresses are nonnumerical entries that can be separated into different categories. It does not make sense to measure or numerically compare them. Therefore, the data are qualitative.