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You are given the probabilityr mass function for a discrete random variable X below. Answer the following questions. x P(X=x} 3 0.2 :L 0.1 1

You are given the probabilityr mass function for a discrete random variable X below. Answer the following questions. x P(X=x} 3 0.2 :L 0.1 1 0.3 4 0.4 a) Find the cumulative distribution function of X. b} Find 005:2} 0} Find E[X]

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