Exhibit 5-11
The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length. It is known that the mean number of occurrences in ten minutes is 5.3.
-Refer to Exhibit 5-11. The probability that there are 8 occurrences in ten minutes is
A).0241
B).0771
C).1126
D).9107

Question

Quizplus · Accepted Answer

The problem describes a Poisson distribution with a mean (λ) of 5.3. The probability of observing 8 occurrences can be calculated using the Poisson probability formula, which results in approximately 0.0771.

Exhibit 5-11 the Random Variable X Is the Number of Occurrences of Occurrences