Which distribution is best-suited to measure the length of time between arrivals at a grocery checkout counter?
A) uniform
B) normal
C) exponential
D) Poisson

Question

Quizplus · Accepted Answer

The length of time between arrivals at a grocery checkout counter is a natural fit for an exponential distribution, which models the time between events in a Poisson process. The arrival times are not fixed, and can vary widely. The exponential distribution is commonly used to model waiting times, and assumes a constant, random flow of arrivals over time.

Which Distribution Is Best-Suited to Measure the Length of Time