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1. A bag contains 7 coins, 2 of which have a head on both sides while the other 5 coins are normal. A coin
1. A bag contains 7 coins, 2 of which have a head on both sides while the other 5 coins are normal. A coin is chosen at random from the bag and tossed 2 times. The number of heads obtained is a random variable, say X. (a) What are the possible values of X? Also tabulate the pmf of X. (b) Calculate E(X) and Var(X).
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Linear Algebra and Its Applications
Authors: David C. Lay
4th edition
321791541, 978-0321388834, 978-0321791542
