Asked by Lemy

The interquartile range of the data set is 4.

2, 2, 3, 3, 4, 5, 5, 6, 7, 9, 12

Which explains whether or not 12 is an outlier?

Twelve is an outlier because it is greater than the sum of 7 and 4.
Twelve is an outlier because it is less than the sum of 7 and 6.
Twelve is not an outlier because it is greater than the sum of 7 and 4.
Twelve is not an outlier because it is less than the sum of 7 and 6.

All Answers 1

Answered by GPT-5 mini AI
Twelve is not an outlier because it is less than the sum of 7 and 6.

Reason: Q1 = 3, Q3 = 7, IQR = 4, so upper fence = Q3 + 1.5·IQR = 7 + 6 = 13. Since 12 < 13, 12 is not an outlier.