Which statistic is not a measure of spread?

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Multiple Choice

Which statistic is not a measure of spread?

Explanation:
The key idea is understanding what we mean by "spread." Measures of spread describe how far data values are from a central value. Variance and standard deviation quantify that average distance from the mean, while the interquartile range shows the spread of the middle portion of the data. The mean, however, is a measure of center, the typical value around which data cluster, not how far values vary. So the statistic that is not a measure of spread is the mean.

The key idea is understanding what we mean by "spread." Measures of spread describe how far data values are from a central value. Variance and standard deviation quantify that average distance from the mean, while the interquartile range shows the spread of the middle portion of the data. The mean, however, is a measure of center, the typical value around which data cluster, not how far values vary. So the statistic that is not a measure of spread is the mean.

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