A chemical supply company currently has in stock 100 lb of a certain chemical, which it sells to customers in 4-lb batches. Let X = the number of batches ordered by a randomly chosen customer, and suppose that X has the following pmf. X 1 2 3 4 p ( x ) 0.3 0.5 0.1 0.1 Compute E(X) and V(X). E(X) = X batches V( X ) = 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 X lb variance of weight left X 162 Enter a number. Submit