Below is an incomplete probability distribution for a random variable X. 1 2 3 4 5 6 |f(x) |f(x) | 0.15 0.25 0.33 0.09 (a) If f (4) = P(X = 4) = 2P(X = 5), complete the probability distribution above. (b) Construct a probability histogram of this distribution. (c) Find the cumulative distribution of the random variable X. %3D %3D

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