Question

Λ represents the average rate, and the expected number of events in a given time frame for the ____________ distribution.

A. Poisson

B. normal

C. binomial

D. geometric

Answer 1

The correct answer is:

Poisson (A.)

Explanation:

A Poisson distribution is used to model the number of events occurring within a given time interval, when the average number of times that the event occurs within the time interval is given.

Lambda ( λ ) is a rate parameter in Poisson's distribution, and it is used to represent "event/time", and it simply represents the expected number of events in the interval.