Question

Find the interquartile range for a data set having the five-number summary: 3.5, 12, 19.1, 25.8, 31.8

Answer 1

interquartile range=21.05

Explanation:

3.5, 12, 19.1, 25.8, 31.8

median is 19.1

Quartile 1= (3.5+12)/2=7.75

Quartile 3=(25.8+31.8)/2=28.8

interquartile range=Q3-Q1=28.8-7.75= 21.05