Adding the same constant to each score in a distribution (or subtracting the same constant from it)will
A)cause the mean to change by that constant
B)not change the mean at all because the same constant was added to or subtracted from each score

Question

Quizplus · Accepted Answer

Adding or subtracting a constant to each score will cause a shift in the entire distribution. This shift will affect the sum of all the scores in the distribution, which in turn affects the mean of the distribution. Specifically, if a constant c is added to each score, then the new mean will be the old mean plus c. Similarly, if a constant c is subtracted from each score, then the new mean will be the old mean minus c. Therefore, the mean will change by that constant.

Adding the Same Constant to Each Score in a Distribution