Which measure of dispersion disregards the algebraic signs (plus and minus) of each difference between X and the mean?
A) Standard deviation
B) Mean deviation
C) Arithmetic mean
D) Variance

Question

Quizplus · Accepted Answer

Mean deviation is calculated by taking the absolute value of each difference between X and the mean, which disregards the signs of the differences. Standard deviation and variance both take into account the signs of the differences by squaring them, while arithmetic mean simply calculates the mean value of the data set.

Which Measure of Dispersion Disregards the Algebraic Signs (Plus and Minus)