Question

The interquartile range of the data set is 4.
2, 2, 3, 3, 4, 5, 5, 6, 7, 9, 12

Answer 1

The IQR or the interquartile range of the following data set would be 4.

Explanation:

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

Median: 5

Lower quartile: 3

Upper quartile: 7

Interquartile range: 7 - 3 = 4

Answer 2

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

Explanation: