If the number of arrivals in a time period follow a Poisson distribution with mean $\lambda$ then the inter-arrival times follow a(n) ____ distribution with mean ____.
A)normal; $\mu$
B)constant; $\lambda$
C)exponential; $\lambda$
D)exponential; 1/$\lambda$

Question

Quizplus · Accepted Answer

The inter-arrival times of a Poisson process follow an exponential distribution with mean 1/$\lambda$.

If the Number of Arrivals in a Time Period Follow λ\lambdaλ

If the Number of Arrivals in a Time Period Follow $\lambda$