Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 3 - Probability - Section 3.3 The Addition Rule - Exercises - Page 164: 23

Answer

No. of Runners = 50 No. of ways runners finish = 50! / (50 - 3)! = 50 x 49 x 48 x 47! / 47! = 50 x 49 x 48 = 117,600

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