A measure of how tightly clustered a group of scores is around their mean is called the ____.
A)variability
B)mode
C)standard deviation
D)frequency

Question

Quizplus · Accepted Answer

The standard deviation is a measure of how scattered the data is around the mean, thus measuring the variability of the scores. Option A (variability) is a general term that encompasses other measures of variability such as range and interquartile range. Option B (mode) is a measure of central tendency, not variability. Option D (frequency) is a measure of how often a particular score or value occurs in the data set and is not related to variability.

A Measure of How Tightly Clustered a Group of Scores