Q266
The arrival rate of customers at a service window of a cinema hall follows a probability distribution with a mean rate of 45 per hour. If the service rate of the clerk follows poisson distribution, with a mean of 60 per hours, what is the probability of having no customer in the system?
A.
0.75
B.
0.6
C.
0.25
AnswerD.
0.45
Answer: Option C
Solution
Answer: Option C
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