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Math Help - Determine the constant C so that f(x) becomes a probability density function (see atc

  1. #1
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    Determine the constant C so that f(x) becomes a probability density function (see atc

    Hi guys first of all i must admit that statistics isnt my deal really.
    I am taking calculus 2 in my engineering program, and we used to have a separate course for statistics but not we dont need to take it anymore, so they have included this moment of statistics on our exam (can give us 3 points of max)

    So I am not really gd at this

    The problem is stated on the paper.

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    Attached Thumbnails Attached Thumbnails Determine the constant C so that f(x) becomes a probability density function (see atc-img_0006.jpg  
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  2. #2
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    pickslides's Avatar
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    Find \displaystyle C\int_{-1}^1 \frac{1}{\sqrt{x+1}}~dx = 1
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  3. #3
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    I got to hear from someone else that this integral is generalized in -1. Why is that ?
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  4. #4
    MHF Contributor harish21's Avatar
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    the pdf holds if x ranges from -1 to 1. It is zero otherwise. therefore you integrate the function from -1 to 1 as stated in post #2.
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