The sum of the squared deviations of scores from their mean
A) is computed the same for samples and populations.
B) is computed by squaring each deviation to avoid a zero solution in the numerator.
C) is the numerator for the sample variance and population variance.
D) all of these.

Question

Quizplus · Accepted Answer

All three statements mentioned in the options are correct.

A) The sum of squared deviations is computed the same for samples and populations.

B) When computing the sum of deviations, some deviations may be negative and some may be positive, and when we find the sum of such deviations, they may cancel each other out, resulting in a zero solution in the numerator. To avoid a zero solution, we square each deviation.

C) The sum of squared deviations is the numerator of the sample and population variance formulas.

The Sum of the Squared Deviations of Scores from Their