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Question 817:

1) Assuming in New York 80% of women and 50% of men know where Tiffany is. At a crossing I ask pedestrians for directions to Tiffany and get these answers:

2 women say North
1 woman says West
2 men say West
1 man says South

What are the probabilities for Tiffany being North respectively West and South?

2) Assuming everyone I ask says East, how does the probability change with the sample size? In other words, how is the probability different if 50 out 50 women say East instead of 5 out of 5 women?

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