Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 7 - Section 7.2 - Probability Theory - Exercises - Page 466: 7

Answer

a) 12/24 = 1/2 b) 12/24 = 1/2 c) 8/24 = 1/3 d) 6/24 = 1/4 e) 6/24 = 1/4

Work Step by Step

The above answers follow quickly from listing out the permutations: 1234, 1243, 1324, 1342, 1423, 1432, 2134, 2143, 2314, 2341, 2413, 2431, 3124, 3142, 3214, 3241, 3412, 3421, 4123, 4132, 4213, 4231, 4312, 4321.
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