Elementary Statistics (12th Edition)

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

Chapter 4 - Probability - 4-5 Multiplication Rule: Complements and Conditional Probability - Basic Skills and Concepts - Page 172: 6



Work Step by Step

Complement of P(A) is that out of the 5, at least one is a girl: $P(\overline{A})=1-P(A)=1-\frac{1}{2^{5}}=\frac{31}{32}$
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