When you subtract the value of the mean from each score in a distribution and then add the results, the sum will be________.
A) 0.
B) the standard deviation.
C) the variance.
D) a positive number.

Question

Quizplus · Accepted Answer

This process is called calculating the sum of squared deviations, and when it is done correctly, the result will always be equal to 0. This is because when you subtract each score from the mean, you are effectively canceling out the positive and negative deviations from the mean, leaving you with a total deviation of 0.

When You Subtract the Value of the Mean from Each