If 5 points are added to each score in a distribution, which of the following will happen?
A) the mean will be unchanged
B) the standard deviation will be unchanged
C) the mode will be unchanged
D) the mean, median and mode will be unchanged
E) the mean, median and mode will change.

Question

Quizplus · Accepted Answer

Adding a constant to each score in a distribution shifts the distribution without affecting the spread, so the standard deviation remains unchanged. The mean, median, and mode will all increase by the constant added.

If 5 Points Are Added to Each Score in a Distribution