Question

the number of letters received in the mail over the past week is recorded. 2 3 5 5 5 15 which value appears to be an outlier? a 2 b 3 c 5 d 15

Explanation:

Step1: Define an outlier

An outlier is a data - point that is significantly different from other data - points.

Step2: Analyze the data

The data set is {2, 3, 5, 5, 5, 15}. Most of the values are 2, 3, or 5. The value 15 is much larger than the other values.

Answer:

D. 15