The descriptive measure of dispersion that is based on the concept of a deviation about the mean is
A)the range
B)the interquartile range
C)the absolute value of the range
D)the standard deviation

Question

Quizplus · Accepted Answer

The concept of deviation about the mean is central to the calculation of the standard deviation. The range and interquartile range are based on the order of observations rather than their deviation from the mean. The absolute value of the range is a measure of spread but does not directly take into account the mean.

The Descriptive Measure of Dispersion That Is Based on the Concept