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30-10-2022
Mathematics

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6-27. Consider the random variables X and Y with the probability distributions given in the following tables.a) Find the mean and standard deviation for each random variable. b)Let Z= X+X+1. Find the mean and standard deviation for Z . c) Let Z=2X+1 . Find the mean and standard deviation for Z. Remember that X+X≠2X. d) What is the expected value for X-Y? Table in picture attached

627 Consider the random variables X and Y with the probability distributions given in the following tablesa Find the mean and standard deviation for each random class=

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