In the Single-Server Model, The

Multiple Choice

In the single-server model, the:

A) customers are assumed to arrive at constant intervals of time.
B) variability of customer arrivals is most often described by a Poisson distribution.
C) mean of the distribution of customer arrivals must be greater than the variance of customer arrivals to get meaningful results.
D) probability of n arrivals in T time periods comes from a normal distribution.