Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 9 - Counting and Probability - Exercise Set 9.1 - Page 524: 19

Answer

A. {(B1B2),(B2B1),(B1B1),(B2B2),(B1W1),(B1W2),(B1W3),(B2W1),(B2W2),(B2W3),(W1B1),(W2B1),(W3B1),(W1B2),(W2B2),(W2B3),(W1W2),(W1W3),(W2W3),(W3W2),(W3W1),(W2W1),(W1W1)} ,(W2W2),(W3,W3)} B.{(B1B2),(B2B1),(B1B1),(B2B2),(B1W1),(B1W2),(B1W3),(B2W1),(B2W2),(B2W3)} = $\frac{10}{25}$ = 40% C. {(W1W2),(W1W3),(W2W3),(W3W2),(W3W1),(W2W1),(W1W1)} =$\frac{9}{25}$ = 36%

Work Step by Step

A. {(B1B2),(B2B1),(B1B1),(B2B2),(B1W1),(B1W2),(B1W3),(B2W1),(B2W2),(B2W3),(W1B1),(W2B1),(W3B1),(W1B2),(W2B2),(W2B3),(W1W2),(W1W3),(W2W3),(W3W2),(W3W1),(W2W1),(W1W1)} ,(W2W2),(W3,W3)} B.{(B1B2),(B2B1),(B1B1),(B2B2),(B1W1),(B1W2),(B1W3),(B2W1),(B2W2),(B2W3)} = $\frac{10}{25}$ = 40% C. {(W1W2),(W1W3),(W2W3),(W3W2),(W3W1),(W2W1),(W1W1)} =$\frac{9}{25}$ = 36%
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