Question

How do outliers affect the mean of a data set?

A. It does not change.
B. It increases.
C. It decreases.
D. It depends whether the outlier is a high outlier or a low outlier.

Answer 1

D is your answer Outlier An extreme value in a set of data which is much higher or lower than the other numbers.

Explanation:

Outliers affect the mean value of the data but have little effect on the median or mode of a given set of data