Applied Statistics and Probability for Engineers, 6th Edition

Published by Wiley
ISBN 10: 1118539710
ISBN 13: 978-1-11853-971-2

Chapter 2 - Section 2-1 - Sample Spaces and Events - Exercises - Page 27: 2-28

Answer

A′∩B contains 55 samples B′ contains 23 samples A∪B contains 85 samples

Work Step by Step

A denote the event that a sample supplie 1 -> A is the first row of three in the table B denote the event that a sample conforms to specifications -> B is the first column of three in the table Base on the table, we can see: A′∩B contains 25 + 30 = 55 samples B' contains 8 + 5 + 10 = 23 samples A∪B contains 22 + 8 + 25 + 30 = 85 samples
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