Question

Consider the following data set:
7.8, 0.6, 1.9, 5, 5.7, 0.7, 1.6, 5.9
Work out the IQR.

Answer 1

Population size:8

Lower quartile (xL): 0.925

Upper quartile (xU): 5.85

Interquartile range (xU-xL): 4.925

Explanation:

Answer 2

4.65

Explanation:

7.8, 0.6, 1.9, 5, 5.7, 0.7, 1.6, 5.9

Sort the data

0.6, 0.7, 1.6, 1.9, 5, 5.7, 5.9, 7.8

Q1: (0.7+1.6)/2

= 1.15

Q3: (5.7+5.9)/2

= 5.8

IQR = 5.8 - 1.15

= 4.65