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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Originally Posted by MathJack 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 $\displaystyle F_X$ is the cumulative distribution then that is correct.
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