Ten people reported the number of hours they worked last week.

17, 42, 40, 35, 24, 20, 30, 32, 25, 38

What is the median, lower quartile, upper quartile, and interquartile range of this set of data?

A. median: 31

lower quartile: 24

upper quartile: 38

interquartile range: 14

B. median: 22

lower quartile: 40

upper quartile: 32

interquartile range: 8

C. median: 31

lower quartile: 24

upper quartile: 38

interquartile range: 7

D. median: 32

lower quartile: 24

upper quartile: 38

interquartile range: 14

Question

Ray Gentry

Mathematics

20 April, 04:13

Ten people reported the number of hours they worked last week.

17, 42, 40, 35, 24, 20, 30, 32, 25, 38

What is the median, lower quartile, upper quartile, and interquartile range of this set of data?

A. median: 31

lower quartile: 24

upper quartile: 38

interquartile range: 14

B. median: 22

lower quartile: 40

upper quartile: 32

interquartile range: 8

C. median: 31

lower quartile: 24

upper quartile: 38

interquartile range: 7

D. median: 32

lower quartile: 24

upper quartile: 38

interquartile range: 14

+4

Answers (1)

Know the Answer?

Alonso Johnson · Answer 1

First arrange them in ascending order:-

17 20 24 25 30 32 35 38 40 42

The median = mean of middle 2 numbers = (30+32) / 2 = 31

Lower quartile = 24 and upper quartile = 38

Inter quartile range = 38 - 24 = 14

Its the first choice.