The random variable X has CDF Fx(x) x< -3 = 0.4 -3 < x< 5 5 < x <7 = 0.8 = 1 x 27 a) Plot Fx(x). Is X, aDiscrete, Continuous or Mixed rv? b) Find the pdf fx(x) c) Find probabilities P(X = 5), P(3 2) d) Determine E(X) e) Determine Var (X)

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