A reason for squaring deviations to compute SS in the numerator includes which of the following?
A) The sum of the differences of scores from their mean is zero.
B) The sum of the squared differences of scores from their mean is minimal.
C) Squaring scores can be readily corrected by square rooting.
D) All of these.

Question

Quizplus · Accepted Answer

Squaring deviations to compute SS in the numerator ensures that the sum of the squared differences of scores from their mean is minimal, which is a necessary condition for the unbiased estimation of the population variance.

A Reason for Squaring Deviations to Compute SS in the Numerator