Standard deviation is the
A) percentage of the comparable population that scores below a given score.
B) bell-shaped curve describing the distribution of scores around a mean.
C) result obtained by adding several values and then dividing the total by the number of values.
D) average amount that each individual score falls above or below the mean.

Question

Quizplus · Accepted Answer

Standard deviation is a measure of dispersion that indicates the average amount that each individual score falls above or below the mean. Options A and B refer to percentile and normal distribution respectively, while option C refers to mean. Therefore, the best choice is D.

Standard Deviation Is the