Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 4 - Probability - 4-5 Multiplication Rule: Complements and Conditional Probability: 17

Answer

0.9881

Work Step by Step

$P(at \ least \ one )=1-P(none )=1-(1-0.67)^{4}=1-0.33^4=0.9881$
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