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    Independent random variables

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    1. A coin is tossed 3 times. Discrete random variable X is equal to the number of times Heads comes up. Discrete random variable Y has the value 1 if the first toss comes up heads and 0 otherwise.
    (a) Find Pr[(X=1)n(y=1)]
    Are X and Y independent random variables?

    © BrainMass Inc. brainmass.com March 4, 2021, 6:26 pm ad1c9bdddf
    https://brainmass.com/math/probability/independent-random-variables-44566

    Solution Preview

    Solution. We can get joint cmf as follows

    X 0 1 2 3
    ...

    Solution Summary

    This shows how to determine if two variables are independent random variables.

    $2.49

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