If the values in a data set are all multiplied by -1, what happens to the standard deviation?
A) It remains unchanged.
B) It gets multiplied by -1.
C) It becomes 0.
D) It cannot be determined without more information.

Question

Quizplus · Accepted Answer

The standard deviation is a measure of the spread of the data. If all the values in a data set are multiplied by the same constant, the spread of the data will not change. Therefore, the standard deviation will remain unchanged.

If the Values in a Data Set Are All Multiplied