Suppose you had three numbers with a mean of 2. You calculated a deviation score for each of the three numbers and then added the deviation scores. The sum would be
A) 1
B) 2
C) 3
D) 0.

Question

Quizplus · Accepted Answer

The sum of the deviation scores from the mean in any data set is always 0. This is because deviation scores are calculated as the difference between each data point and the mean, and by definition, the sum of these differences for a perfectly balanced dataset around its mean is zero.

Suppose You Had Three Numbers with a Mean of 2