Question

5,8,9,11,13,15,16,17,17,18,22,23 iqr

Answer 1

7.5

Explanation:

5, 8, 9, 11, 13, 15, 16, 17, 17, 18, 22, 23

Median: 15.5

(Q1) lower quartile: 10

(Q2) upper quartile: 17.5

interquartile range: 17.5 - 10 = 7.5

Answer 2

The interquartile range is 8.25