A chemical supply company currently has in stock 100 lb of a certain chemical, which it sells to customers in 3-lb batches. Let X = the number of batches ordered by a randomly chosen customer, and suppose that X has the following pmf. 2 3 4 0.5 0.1 0.1 p(x) Compute E(X) and V(X). E(X)= V(X) = 1 0.3 batches batches2 Compute the expected number of pounds left after the next customer's order is shipped and the variance of the number of pounds left. [Hint: The number of pounds left is a linear function of X.] expected weight left lb 16² variance of weight left

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