ts, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are arranged in a uniformly random permutation. We denote by a the integer formed in base 10 by the first five positions in this permutation and by b the integer formed in base 10 by the last five positions in this permutation (either a or b may begin with 0 which in such a case is ignored). For example, if the random permutation is 8621705394 then a = 86217 and b = 5394. Consider the probability space whose outcomes are these random permutations and a random variable X defined on this probability space such X = 1 when the product ab is even and X = 0 when that product is odd. Calculate E[X].

ts, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are arranged in a uniformly random permutation. We denote by a the integer formed in base 10 by the first five positions in this permutation and by b the integer formed in base 10 by the last five positions in this permutation (either a or b may begin with 0 which in such a case is ignored). For example, if the random permutation is 8621705394 then a = 86217 and b = 5394. Consider the probability space whose outcomes are these random permutations and a random variable X defined on this probability space such X = 1 when the product ab is even and X = 0 when that product is odd. Calculate E[X].

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section: Chapter Questions

Problem 2CC

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