1. A car salesman sends updates to customers via text. The probability model describes the number of text messages the salesman may send in a day. Texts Sent 0 1 2 3 4 5 P(X) 0.05 0.05 0.1 0.1 0.4 0.3 How many texts would you expect the salesman to send each day? (2 points) Select one: a. 3.9 b. 3.65 c. 3.25 d. 2.9 e. 2.45 2. A person with type O blood can donate red blood cells to anybody because type O blood is the universal blood type. About 44% of the US population has type O blood. University High held a blood drive where 50 students donated blood. Part A: What is the probability that exactly 25 of the students had type O blood? (5 points) Part B: What is the probability that at least 25 of the students had type O blood? (5 points) (10 points) 3. The CEO of a clothing company estimates that 52% of customers will make a purchase. (10 points) Part A: How many customers should a salesperson expect until she finds a customer that makes a purchase? Part B: What is the probability that a salesperson helps 3 customers until she finds the first person to make a purchase?