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Unformatted text preview: 2. An experiment consists of ±ipping a fair coin 5 times. Let the random variable X represent the number of times the coin lands on heads. (a) ²ind the probability distribution of X . (b) Draw the histogram for the random variable X . (c) ²ind P ( X > 3) 3. An experiment consists of randomly selecting a sample of 4 radios out of a bin containing 30 radios, of which 6 are defective. Let the random variable Y represent the number of defectives in the sample. ²ind the probability distribution of Y . 4. Jack and Jill decide to play a game. Jill rolls a pair of fair six-sided dice. If the sum of the numbers is less than 4, Jill pays Jack $1. If the sum of the numbers is greater than 9, Jack pays Jill $10. Otherwise, Jill pays Jack $ A . ²ind the value of A that makes this game fair....
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This note was uploaded on 03/04/2012 for the course MATH 141 taught by Professor Jillzarestky during the Fall '08 term at Texas A&M.
- Fall '08