The standard deviation tells how:
A) much the scores in a distribution are spread out
B) one group compares in level of performance to another
C) highly one variable is related to another
D) an individual compares to a group

Question

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The standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range.

The Standard Deviation Tells How