Question

Find the interquartile range of the data.

A.
6


B.
7


C.
8


D.
9

Answer 1

C.8

Explanation:

Median: 28

Lower quartile: 25

Upper quartile: 33

(IQR) interquartile range: 33 - 25 = 8

Answer 2

IQR = Q3 - Q1

Q1 is where the box starts and Q3 is where the box ends.

So in this case:

Q1 = 25
Q3 = 33

Subtract:

33 - 25 = 8

So the IQR is 8.