Question

Reyna collected the set of data shown below. If she removes the outlier, which statement about the mean of the set of data is true?

12, 19, 21, 21, 22, 22, 25, 27, 29

a. The mean increases by 12.
b. The mean decreases by 29.
c. The mean increases by 1.25.
d. The mean decreases by .875

Answer 1

what is outlier?

Answer 2

The outlier is 12. I think I solved it. The answer is The mean increases by 1.25.

Answer 3

Thanks.