Question

Sort data from least to greatest

7 1/2, 7, 4, 2 1/2, 0, 3, 1 1/2, 4, 4

Find the interquartile range (IQR) of the data set

Answer 1

Explanation:

0, 1 1/2, 2 1/2, 3, 4, 7, 7 1/2

the medium is 3

Q1 is in the middle of (0,1 1/2, 2 1/2) and it is 1 1/2

Q3 is in the middle of (4, 7, 7 1/2) and it is 7

IQR= Q3-Q1=7-1 1/2=14/2-3/2=11/2