Question

Which set of data contains one outlier?

A. 15, 19, 26, 51, 18, 21
B. 22, 33, 31, 20, 28, 19
C. 18, 20, 16, 22, 28, 26
D. 27, 21, 31, 18, 21, 29

Answer 1

A.

Explanation:

I got it right.

Answer 2

A. 15, 19, 26, 51, 18, 21

Explanation:

(A) contains an outlier which is 51.

An outlier is a value that is way bigger or way smaller than other values.

B, C, and D's group of numbers all look close together when it comes together, but option A stands out.

51 is way bigger than the other numbers in option A, so it is an outlier.

A. 15, 19, 26, 51, 18, 21

A is our best option, since the question asks us to choose the answer that has an outlier in it.