l. [8 Points) In this problem, assume Poisson arrivals and exponential service times. Customers of Plako Record rental outlet arrive at the store to rent CDs with an arrival rate of 125 customers per minute. The store has only 1 counter with a service rate of 2 customers per minute. What is the probability that no customers are in the system? What is the average number of customers waiting for service? What is the probability that an arriving customer will have to wait for service? What is the probability that there are 5 customers in the system? 110.553 2. (I 0 Points) Suppose that Plaka Record rental outlet adds another counter to serve the customers simultaneously. The average number of customers in the waiting line The average number of customers in the system The average time a customer spends in the waiting line . The average time a customer spends in the system norm