Part BCWD is considering adding a second clerk to take calls. The store would pay that person the same $$10$ per hour.Using appropriate formula for the multiple channel model, Answer the following questions :a$.$ What is the probability that no customers are in the system $($Po$)?3$ marks b$.$ What is the average number of customers waiting for service $($Lq$)?2$ marks c$.$ What is the average number of customers in the system $($L$)?3$ marksd. What is the average time a customer waits for service $($Wq$)?2$ markse. What is the average time in the system $($W$)?2$ marksf. What is the probability that a customer will have to wait for service $($Pw$)?2$ marks g$.$ What is the probability that there is exactly $2$ customers in the system $2$ marksh. Should it hire another clerk? Explain by showing the cost savings $-4$ marks