Question 17 (1 point) A salesperson knows that 0.25 of her sales calls will result in a sale and that the probability of making a sale is independent of her other sales calls. If she makes 11 sales calls: What is the expected number of sales [long run average)? Use this information to answer the following two questions as well. Your Answer: :] Answer Question 18 (1 point) What is the probability the salesperson will make exactly 5 sales? Your Answer: :] Answer Question 19 (1 point) What is the probability the salesperson will make at least 1 sale Your Answer: :] \"alumina-u