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Math Help - Marginal Probabilities of a discrete 2 dimensional variable

  1. #1
    Junior Member
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    Nov 2011
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    Marginal Probabilities of a discrete 2 dimensional variable

    Hi everybody,

    I attached a pdf file with an exercise (calculate marginal distributions). I have issues understanding how to get the result in the discrete case (result should be correct though as I have it from a book).
    Also I solved the exercise for the continuous case (out of curiosity) and got another result. Why is that?

    The calculations are in the pdf file.

    I would be very glad if someone could help.

    Many thanks,
    Fab
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  2. #2
    Junior Member
    Joined
    Nov 2011
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    Re: Marginal Probabilities of a discrete 2 dimensional variable

    Can somebody help here?

    many thanks,
    Fabien
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