What is the interquartile range of the following set? 28, 45, 12, 34, 36, 45, 19, 20

Question

Meredith Powell

Mathematics

26 June, 18:40

What is the interquartile range of the following set? 28, 45, 12, 34, 36, 45, 19, 20

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Answers (1)

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Johnathon Hunter · Answer 1

Set = {12, 19, 20, 28, 34, 36, 45, 45} (Ascending order)

n (Set) = 8

Lower quartile = 25/100 * n (Set) = 1/4 * 8 = 2th Term = 19

Upper quartile = 75/100 * n (Set) = 3/4 * 8 = 6th Term = 36

Interquartile range = 36 - 19 = 17