Question

select the outlier in the data set.
55 10 49 69 53 50 44 70 56 59
31 51 47 57 73
if the outlier were removed from the data set, would the mean increase or decrease?
increase decrease

Explanation:

Step1: Identify the outlier

Most values are in the 40 - 70 range, 10 is far from this range, so 10 is the outlier.

Step2: Analyze effect on mean

The outlier 10 is a very low - value. Removing a low - value from the data set will increase the sum of the remaining values relative to the number of remaining values, thus increasing the mean.

Answer:

10
increase