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Unformatted text preview: {9 ,8 ,..., 8 , 9 } (i.e. P ( X = k ) = 1 / 19 for9 k 9.) Problem 1 . Find P ( X 2 5). Solution . P ( X 2 5) = P ( 5 X 5) = P ( X {2 ,1 , , 1 , 2 } ) = 5 / 19. Function of random variable discrete case Example. Let X be uniform on the 19 integers {9 ,8 ,..., 8 , 9 } (i.e. P ( X = k ) = 1 / 19 for9 k 9.) Problem 1 . Find P ( X 2 5). Solution . P ( X 2 5) = P ( 5 X 5) = P ( X {2 ,1 , , 1 , 2 } ) = 5 / 19. Problem 2 . Find P (  X2  5). Function of random variable discrete case Example. Let X be uniform on the 19 integers {9 ,8 ,..., 8 , 9 } (i.e. P ( X = k ) = 1 / 19 for9 k 9.) Problem 1 . Find P ( X 2 5). Solution . P ( X 2 5) = P ( 5 X 5) = P ( X {2 ,1 , , 1 , 2 } ) = 5 / 19. Problem 2 . Find P (  X2  5). Solution. P (  X2  5) = P (5 X2 5) = P (3 X 7) = 11 / 19....
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 Spring '10
 RohiniKumar

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