Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 4 - Probability - 4-4 Multiplication Rule: Basics - Beyond the Basics - Page 167: 31


a) 0.99 b)0.9801. c) Series connection.

Work Step by Step

a) The tv doesn't get damaged if the second one stays good, which has the probability of 0.99. b) The tv doesn't get damaged if both of them stay good, because if one of them gets wrong then it affects the tv. Hence the probability of both staying good is:$0.99\cdot0.99=0.9801$. b)0.99>0.9801, so we should choose the series connection.
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