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Math Help - Hey guys, quick question on discrete random variables

  1. #1
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    Exclamation Hey guys, quick question on discrete random variables

    x -1 0 1/2 1

    p X(x) 1/8 1/8 1/4 1/2

    (a) Calculate
    P(X = 3/4) + FX(3/4).

    Does P (X= 3/4) = 0 and Fx(3/4) = 1/2 so the answer would be a half?

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  2. #2
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    Re: Hey guys, quick question on discrete random variables

    Quote Originally Posted by MathJack View Post
    x -1 0 1/2 1

    p X(x) 1/8 1/8 1/4 1/2

    (a) Calculate
    P(X

    = 3/4) + FX(3/4).

    Does P (X= 3/4) = 0 and Fx(3/4) = 1/2 so the answer would be a half?

    If the notation F_X is the cumulative distribution then that is correct.
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