Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 3 - Probability - Exercises 3.1 - 3.34 - Applying the Concepts - Basic - Page 121: 3.22c

Answer

7 out of 1,000 people exposed to ocean water for a 10-minute period will acquire gastroenteritis. If a beachgoer spends 10 minutes in the ocean water, the probability that he or she will acquire gastroenteritis is: P = 7/1000 = .007

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