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 - Basic Skills and Concepts - Page 166: 20



Work Step by Step

Because the radios are independent, the probability of both failing is: $P=0.0035 \cdot 0.0035=0.00001225$, therefore having two radios significantly decreases the chance of failure.
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