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Joint Moment Generating Function Help

  1. Feb 23, 2012 #1
    Hi, I've no idea where to go with the question below:

    Joint moment generating function of X and Y - MXY(s,t) = 1/(1-2s-3t+6st)
    for s<1/2, t<1/3.

    Find P(min(X,Y) > 0.95) and P(max(X,Y) > 0.8)
     
  2. jcsd
  3. Feb 23, 2012 #2

    Ray Vickson

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    Can you represent [itex] M_{XY}(s,t)[/itex] in the form [itex] M_1(s) \cdot M_2(t)[/itex]?

    RGV
     
  4. Feb 23, 2012 #3
    Is it 1/(1-2s) . 1/(1-3t)?
     
  5. Feb 24, 2012 #4

    Ray Vickson

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    Well, is it? You can answer your own question.

    RGV
     
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