Evaluate the cumulative distribution function, F, for the given random variable, X, at specified values; also determine the requested probabilities. f(x) = (729/91)(1/9)*,x = 1,2,3 Give exact answers...

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Extracted text: Evaluate the cumulative distribution function, F, for the given random variable, X, at specified values; also determine the requested probabilities. f(x) = (729/91)(1/9)*,x = 1,2,3 Give exact answers in form of fraction. F(1) = 81/91 F(2) = 90/91 F(3) = 1 (a) Р(X < 1.5)="" %3="" 81/91="" (b)="" р(х="">< 3)="" —="" 1="" (c)="" p(x=""> 2) = 1/91 (d) P(1 < x="">< 2)="">