Which of the following distributions is most often used to estimate service times?
A)negative exponential
B)normal
C)Poisson
D)Erlang
E)beta

Question

Quizplus · Accepted Answer

The negative exponential distribution is commonly used to model service times because it assumes that the likelihood of a long service time is low while the likelihood of a short service time is high, which is a reasonable assumption in many service situations. This distribution is also easy to work with mathematically and has a single parameter (the mean service time) that can be estimated from historical data.

Which of the Following Distributions Is Most Often Used to Estimate