4. (3 points) The demand D for a product in a week is a random variable taking on the values of -1,0, 1 with probabiliti
Posted: Sun Oct 03, 2021 12:42 pm
4. (3 points) The demand D for a product in a week is a random variable taking on the values of -1,0, 1 with probabilities 1/8, 5/8, and c/8, respectively. A demand of -1 implies that an item is returned. (a) Find c, E[D], and variance D. (b) Find E[eº]. (c) Sketch the CDF of the random variable D, labeling all the necessary values.