The value of the sum of the deviations from the mean, i.e., must always be
A) less than the zero.
B) negative.
C) either positive or negative depending on whether the mean is negative or positive.
D) zero.

Question

The value of the sum of the deviations from the mean, i.e.,  must always be
A) less than the zero. 
B) negative. 
C) either positive or negative depending on whether the mean is negative or positive. 
D) zero.

Quizplus · Accepted Answer

By definition, the sum of deviations from the mean is always equal to zero. Therefore, the correct answer is D, as the sum of deviations from the mean must always be zero.

The Value of the Sum of the Deviations from the Mean