4 Suppose that Pizza King and Noble Greek stop advertising but must determine the price they will charge for each pizza sold. Pizza King believes that Noble Greek’s price is a random variable D having the following mass function: P(D  $6)  .25, P(D  $8)  .50, P(D 

$10)  .25. If Pizza King charges a price p1 and Noble Greek charges a price p2, Pizza King will sell 100 25( p2  p1) pizzas. It costs Pizza King $4 to make a pizza.

Pizza King is considering charging $5, $6, $7, $8, or $9 for a pizza. Use each decision criterion of this section to determine the price that Pizza King should charge.