=80 customers / minute a) What is the average time a customer spends in a waiting line? b) What is the probability that there are five customers in the system? Single-Channel Waiting Line Problem 2 Two-Channel Waiting Line Problem 2 \begin{tabular}{|l|} \hline Number of Channels (k) \\ \hline Mean Arrival Rate (a) \\ \hline \\ \hline Mean Service Rate per Charnel () \\ \hline \end{tabular} Po = The probability that no customers are in the system Lq= Average number of customers in the waiting line HDiviol L= Average number of customers in the system EDIVIOI W Wq = Average time a customer spends in the waiting line inminutes W= Average tirn a customer spends in the syatem