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Math Help - best forecast

  1. #1
    Newbie
    Joined
    Aug 2008
    Posts
    9

    best forecast

    hi,
    i have been solving this question and my result is different than the results i have been given to compare to. can u please tell me if i am correct?
    two people flip coins X,Y count their heads respectively.
    T=max(x,y) Z=min(x,y)
    if it is given that t=2. what is the best forecast for z.

    i created a table of mutual probability of t and z.
    now i think i should find
    e(z|t=2)
    i got e(z|t=2)=0+1*0.25*16/7+2/16*16/7=6/7

    am i correct or is the answer 20/23

    thanks for your help
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  2. #2
    MHF Contributor matheagle's Avatar
    Joined
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    I need to know how many times, these people are tossing their coins.
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