Records show that the average number of phone calls received per day is 9.2. Find the probability of between 2 and 4 phone calls received (endpoints included) in a given day.

4.76% probability of between 2 and 4 phone calls received (endpoints included) in a given day.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

In which

x is the number of sucesses

e = 2.71828 is the Euler number

is the mean in the given interval.

Records show that the average number of phone calls received per day is 9.2.

This means that .

Find the probability of between 2 and 4 phone calls received (endpoints included) in a given day.

4.76% probability of between 2 and 4 phone calls received (endpoints included) in a given day.