Question 10 1P Supermarket has a single queue. Exponentially distributed service time with a rate of 10 customers/hour. Poisson arrival with a rate of 6 customers per hour. What is the expected number of customers in the queue? 3.5 customers 1 customer 4.5 customers 8 customers 1 pts Question 9 Supermarket has a single queue. Exponentially distributed service time with a rate of 10 customers/hour. Poisson arrival with a rate of 6 customers per hour. What is the expected number of customers in the system? 4 customers 3 customers 2 customers 5 customers Question 8 Supermarket has a single queue. Exponentially distributed service time with a rate of 10 customers/hour. Poisson arrival with a rate of 6 customers per hour. What is the expected waiting time per customer in the system? 0.6 hours 0.15 hours 0.25 hours 0.3 hours