Mathematics, 07.07.2021 02:50 ecenteno2004
A. For a group of individuals, the random variable x denotes the number of credit cards per individual with the following distribution. x: 0 1 2 3 4 5 P(x): .27 .28 .20 .15 .08 .02 a. find the mean, variance and standard deviation of x b. find the probability that a randomly selected individual holds at least 1 card.
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A. For a group of individuals, the random variable x denotes the number of credit cards per individu...
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