Question

Find the interquartile range (IQR) of the data set. 1,1,3,4,4,5,5,5,6,7,9

Answer 1

The interquartile range is 3

Answer 2

Answer:

The interquartile range is 3.

Step-by-step explanation:

1, 1, 3, 4, 4, 5, 5, 5, 6, 7, 9

Median: 5

(Q1) Lower quartile: 3

(Q2) Upper quartile: 6

(IQR) Interquartile range: 6 - 3 = 3