The standard deviation is a measure of
A) how far all the scores vary from the mean
B) how far the middle-most 50% of cases vary from the mean
C) how far the highest and lowest scores vary from each other
D) central tendency

Question

Quizplus · Accepted Answer

The standard deviation measures how much each score varies from the mean, indicating the spread of the data. Option B describes the interquartile range, option C describes the range, and option D describes measures of central tendency such as the mean or median.

The Standard Deviation Is a Measure of