In order to encourage employees, the manager of a store with a large number of employees randomly selects one employee each week to receive a gift card, and employees can be chosen more than once. Depending on their iob duties, the store emoloyees are classified as cashiers or stockers, with 70 percent of the employees classified as cashiers and the other 30 percent classified as stockers. Some of the stockers are concerned that the manager is not randomly selecting emoloyees because in the last 12 wecks, only 2 of the employees selected to receive the gift card have been stockers. Assuming the manager is randomly selecting employees to receive the gift card, what is the probability that at most 2 stocker would be selected out of 12 weeks