Evaluate the cumulative distribution function, F, for the given random variable, X, at specified values; also determine the requested probabilities. f(x) = (64/21)(1/4)*, x = 1,2,3 Give exact answers in form of fraction. F(1) = F(2) = F(3) = i (a) P(X < 1.5) = (b) P(X < 3) = i (c) P(X > 2) = %3D (d) P(1 < X < 2) =

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