Janac is a company that needs to replenish its inventory of strawberries. Your normal supplier can stock as many boxes as you want. However, since they are already very ripe, you will need to sell them the next day and then discard any that are left. The prior probabilities of being able to sell 12, 13, 14, and 15 boxes of strawberries tomorrow are estimated to be 0.1, 0.3, 0.4, and 0.2, respectively. It is estimated that he will be able to sell 12, 13, 14 or 15 boxes tomorrow. You can buy the strawberries for $30 per box and sell them for $40. Do you need to decide how many boxes to buy under the Mathematics Expectation criteria? The pay table is: