The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 13 - General Rules of Probability - Chapter 13 Exercises - Exploring the Web - Page 326: 13.59a

Answer

When you switch doors, you have a 2/3 probability of winning. P(Win|Switch) = 2/3 = 66.67% When you don't switch doors, you have a 1/3 probability of winning. P(Win|No Switch) = 1/3 = 33.33%

Work Step by Step

When you switch doors, you have a 2/3 probability of winning. P(Win|Switch) = 2/3 = 66.67% When you don't switch doors, you have a 1/3 probability of winning. P(Win|No Switch) = 1/3 = 33.33%
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