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Math Help - Addition of Random Variables

  1. #1
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    Addition of Random Variables

    Hi there,

    I'm sure this is a very easy question, but I can't for the life of me find an example of how to do it in my textbook.

    X~b(3,1/2) and Y~b(5,1/2)

    Determine P(X+Y=7).

    If you could just give me a hint what to do, that would be much appreciated.
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  2. #2
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    Quote Originally Posted by manygrams View Post
    Hi there,

    I'm sure this is a very easy question, but I can't for the life of me find an example of how to do it in my textbook.

    X~b(3,1/2) and Y~b(5,1/2)

    Determine P(X+Y=7).

    If you could just give me a hint what to do, that would be much appreciated.
    http://www.dartmouth.edu/~chance/tea...k/Chapter7.pdf
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  3. #3
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    Thanks!
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