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Math Help - Geometric Distribution Probability Question

  1. #1
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    Geometric Distribution Probability Question

    Maybe I made it too complicated, so basically here is a simpler version
    Just say two people toss a coin, with the geometric distributions of getting a head, respectively
    Note: p1 != p2
    P(player1)=p1(1-p1)^n-1
    P(player2)=p2(1-p2)^n-1

    What's probablity player 2 gets a head before player 1 does.
    So say, player 2 gets a head at the 10th trial, then player 1 has to be 11.....n

    Can anyone help me with this?


    Thanks a lot
    Last edited by wxyj; January 21st 2010 at 11:40 AM.
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  2. #2
    Newbie
    Joined
    Oct 2009
    Posts
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    Maybe I made it too complicated, so basically here is a simpler version
    Just say two people toss a coin, with the geometric distributions of getting a head, respectively
    Note: p1 != p2
    P(player1)=p1(1-p1)^n-1
    P(player2)=p2(1-p2)^n-1

    What's probablity player 2 gets a head before player 1 does.
    So say, player 2 gets a head at the 10th trial, then player 1 has to be 11.....n

    Can anyone help me with this?

    Thanks
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