Which of the following distributions is most often used to estimate the arrival pattern?
A)negative exponential
B)normal
C)Poisson
D)Erlang

Question

Quizplus · Accepted Answer

The Poisson distribution is commonly used to model arrival patterns because it is appropriate for count data that measures the number of arrivals in a fixed time interval, and assumes that the arrival rate is constant over time. The other distributions are less commonly used for arrival patterns: the negative exponential distribution is used for modeling the time between arrivals, the normal distribution is used for continuous data that is normally distributed, and the Erlang distribution is used for modeling waiting times in queueing systems.

Which of the Following Distributions Is Most Often Used to Estimate