A chemical supply company currently has in stock 100 lb of a certain chemical, which it sells to customers in 5-lb batches. Let X be the number of batches ordered by a randomly chosen customer. 1 0.2 2 0.4 3 0.3 4 0.1 X P(x) a. Compute E[X] and Var[X] b. Compute P(X < 3), P(X>3), P(X ≤ 3), P(X ≥ 3), P(1 < X <4), P(1

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