Question 1 A large hotel maintains a customer service number staffed by 3 operators. If you call and all 3 operators are currently busy, you get...

Question 1

A large hotel maintains a customer service number staffed by 3 operators. If you call and all 3 operators are currently busy, you get disconnected. Assume that arrivals are Poisson and arrive at an average rate of 12 per hour. The average length of a call is 3 minutes and service times are exponentially distributed. For simplicity, do not consider call retry in case you get disconnected.