3. Customers who are registered on a corporate Web site are summarized by the type of shipping contract they use and the number of orders in the previous month. The number of customers in each category are shown in the following table. Customers are to be selected with Styles Pane replacement. Shipping Contract No orders Express Standard Total 25 15 40 One order 55 65 45 110 More than one order 40 20 60 (a) How many different samples of eight express customers are possible? (2 points) (b) How many different samples of ten standard customers are possible? (2 points) (c) How many different samples of eight express and ten standard customers are possible? (1 point)