Window All Windows 2-(20 pts) The UC Merced cafeteria is a self-serve facility in which students select the food items they want, then form a single line to pay the cashier. Students arrive at a rate of about four per minute, and the single cashier ringing up sales takes about 12 seconds per customer. a) How many students on average are in line to pay the cashier? b) What is the average number in the system? c) What is the probability that the system is empty? d) How long will the average student have to wait before reaching the cashier? e) How much time will the average student spend waiting and being served? f) What is the probability that there are 3 students in the system? g) What is the probability that there are more than 3 students in the system? h) What is the probability that there are 3 or more students in the system? i) What is the probability that there are less than 3 students in the system? What is the probability that there are no more than 3 students in the system? i) English (United States) Focus 550 words Reader 3