4. You wish to organize a bake sale selling pizzas at UDC. Suppose the following probability distribution of demand, Demand 15 18 21 24 Probability 0.2 0.4 0.3 0. 1 Each pizza costs you $15 and you sell it for $25. Any unsold pizzas can be salvaged for $5 each. a) Set up a conditional profit table for stock levels of15, 18, 21, and 24. b) How many pizzas be stocked according to maximax rule, maximin rule, and minimax regret (opportunity loss)? c) How many pizzas be stocked to according expected value rule