Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 2 - Descriptive Statistics - Section 2.5 Measures of Position - Exercises - Page 109: 1

Answer

Length of most of the movies is between 90 and 210 minutes. Therefore Range = 210 - 90 = 120 Hence first Quartile will be given by 1/4 th of the Range plus minimum length Hence 90 + 120/4 = 120 Therefore expected movie length is 120 minutes

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