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Math Help - CDF to PDF

  1. #1
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    CDF to PDF

    Hello, can someone please help me, Im stuck with this:
    Last edited by NaeL; May 3rd 2010 at 11:43 AM. Reason: resizing image
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  2. #2
    Super Member Anonymous1's Avatar
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    Quote Originally Posted by NaeL View Post
    Hello, can someone please help me, Im stuck with this:
    For CDF F(x) and PDF f(x), we have the relation...

    \frac{d}{dx}F(x) = f(x)

    Also, you know \int_a^b f(x) = 1 where x is defined on a<x<b... You can use this fact to find K.

    For the last part note that F(x) = P(X\leq x) and F(x) is given. Also, P(a\leq x \leq b) = \int_a^b f(x)dx.

    Show me where you are stuck, and I will help you proceed.
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