A service center consists of two servers, each working at an exponential rate of two services per hour. If customers arrive at a Poisson rate of three per hour, then, assuming a system capacity of at most three customers. Required:
a. What fraction of potential customers enter the system?
b. What would the value of part (a) be if there was only a single server, and his rate was twice as fast (that is, μ = 6)?