Answer:
The probability that there are 8 occurrences in ten minutes is
option B. 0 .0771
Explanation:
Given:
Random Variable = x
Mean number of occurrences in ten minutes is 5.3.
The probability of an occurrence is the same in any two time periods of an equal length
To Find:
The probability that there are 8 occurrences in ten minutes = ?
Solution:
Let X be the number of occurrences of the event X


Possion of distribution is given by ,

Substituting the values,



P(X=8) = 0.0771