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Math Help - Probability Generating Function

  1. #1
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    Probability Generating Function

    Find the Probability generating function of the discrete random variable X with probability mass function

    P(X=k)= (2/3)x(1/3)^k-1 for k=1,2...

    Hence find the mean of X?

    Can anybody help with this question?
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  2. #2
    Super Member
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    Re: Probability Generating Function

    Hi,
    Here's a solution. I hope you understand:

    Probability Generating Function-mhfprobability3.png
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