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Math Help - Probability Density Function

  1. #1
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    Probability Density Function

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    Last edited by Porter1; December 1st 2009 at 06:31 AM.
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  2. #2
    MHF Contributor matheagle's Avatar
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    You have the joint density of Y1 and Y2.
    Let W=Y1 and find the joint density of W and U.
    (That's calc3, jacobians.)
    Then integrate out the unnecessary rv W.
    And start showing your work here.

    The other one is calc1

     f_U(u)=f_Y(y)\biggl|{dy\over du}\biggr|
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  3. #3
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    Not quite sure what you are talking about.
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  4. #4
    MHF Contributor matheagle's Avatar
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    You should review calc3, change of variables.
    Look at jacobians and the examples of polar, cylindrical and spherical coordinates
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