The law gives certain holders of a negotiable instrument a preferred standing by protecting them from all defenses when they sue to collect payment

Explain the goal of viral marketing

What will be an ideal response?

Instead of having another student help Lenny, the manager is thinking of having two lines instead. Customers will equally divide themselves between the two lines

How long will students wait in line if there's a second server? (Assume that the service time is 5 minutes.) Lenny, a graduate research assistant "moonlights" at the short order counter in the student union snack bar in the evenings. He is the only one on duty at the counter during the hours he works. Arrivals to the counter seem to follow the Poisson distribution with a mean of 8 per hour. Each customer is served one at a time and the service time follows an exponential distribution with a mean of 5 minutes.