Given:
The distribution used to describe the number of events that occur when a given average number of events is expected is the ______ distribution.
To find:
The distribution.
Step-by-step explanation:
We know that,
If a mean or average probability of an event happening is given, and we are asked to calculate a probability of n events happening in a given time then the Poisson Distribution is used.
In the given statement, it is mentioned that the average number of events expected is given.
We just need to find the probability of "n" number of events that occur.
So, the answer is Poisson distribution.
Final answer:
Poisson distribution.