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: 2-26

Answer

(a) A∩B=70 (b)$ A^{'}$= 14 (c) A∪B=95

Work Step by Step

A = 70+16=86, the event that a disk has high shock resistance B =70+9=79, the event that a disk has high scratch resistance (a) A∩B=70, high shock and high scratch (b)$ A^{'}$=100 - 86 = 14 (c) A∪B=A+B-(A∩B)=86+79-70=95
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