________ is a measure of the dispersion of random variable values about the expected value or mean.
A) Standard deviation
B) Sample mean
C) Population mean
D) Expected value

Question

Quizplus · Accepted Answer

Standard deviation is the measure of dispersion that shows how much the random variable values deviate from the expected value or mean. It is a statistical tool that measures the amount of variability or dispersion for a set of values.

________ Is a Measure of the Dispersion of Random Variable