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Math Help - Joint P.D.F

  1. #1
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    Joint P.D.F

    Can any one help me solve this ? I don't know how to start.



    Joint P.D.F-capture.png
    Last edited by CaptainBlack; August 1st 2010 at 08:18 AM.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by Hitman6267 View Post
    Can any one help me solve this ? I don't know how to start.



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    Sketch the region over which the joint density is defined, identify the subregion corresponding to x\ge y then integrate the joint pdf over that region.

    (note that should be:

    f(x,y) = \begin{cases} 12xy&,0\le x \le 1, x^2\le y\le \sqrt{x}\\0&, \text{otherwise}<br />
\end{cases}

    as it is a joint density)


    CB
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