Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 3 - Section 3.5 - Measures of Position - Exercises - Page 112: 3.66

Answer

Interquartile range is the difference between the first quartile (Q1) and the third quartile (Q3).

Work Step by Step

The example given is the ages of 5 employees in a company, 24,26,28, 34, 50, $Q1 = (24+26)\div2 = 25, Q2 = 28, Q3= (34+50)\div2= 42$ Interquartile range = $Q3-Q1 = 42-25 = 17$
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