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Unformatted text preview: a question, given that he or she answered it correctly? Give the numerical result if m = 5, p = 0 . 5. 7. Stores A , B , and C have 50, 75, and 100 employees and, repectively, 50, 60, and 70 percent of these are women. Resignations are euqally likely among all employees, regardless of sex. One employee resigns, and this is a women. What is the probability that she works in store C? 8. (a) A gambler has in his pocket a fair coin and a twoheaded coin. He selects one of the coins at random; when he ﬂips it, it shows heads. What is the probability that it is the fair coin? (b) Suppose that he ﬂips the same coin a second time and again it shows heads. What is now the probability that it is the fair coin? (c) Suppose that he ﬂips the same coin a third time and it shows tails. What is now the probability that it is the fair coin? 2...
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 Spring '05
 Roychowdhary
 Conditional Probability, Probability, fair coin, 70 percent, Vwani Roychowdhury

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