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Chapter 3: Q. 1 (page 150)

Define

a. descriptive measures,

b. measures of center,

c. measures of variation.

Short Answer

Expert verified

a. Those measures that are used to characterize the data sets are the descriptive measures.

b. Measures of center, are descriptive measures that show where a data set's center or most typical value is located.

c. Measures of variation are descriptive measures that reflect the degree of variation, or spread, in a data collection.

Step by step solution

01

Part a. descriptive measures

One method of summarising data is to use numbers that describe the data set, such as averages and percentiles.

Descriptive measures are numerical values that are used to characterize data sets.

02

Part b. measures of center

Measures of the center are descriptive measures that show where a data set's center or most typical value is located.

Measures of the center are often called averages.

03

Part c. measures of variation.

Measures of variation are descriptive measures that reflect the degree of variation, or spread, in a data collection.

In statistics, measures of variation are approaches to characterize the distribution or dispersion of data.

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