Let us assume the average number of customers served per hour is five customers.What is the probability that the service exceeds 1 hour for any customer?
A)0.67%
B)1.23%
C)0.98%
D)9.00%

Question

Quizplus · Accepted Answer

The average rate of serving customers is 5 per hour, which means the service time follows an exponential distribution with a mean of 1/5 hours. The probability that the service time exceeds 1 hour is given by P(T > 1) = e^(-5*1) = e^(-5) ≈ 0.0067 or 0.67%.

Let Us Assume the Average Number of Customers Served Per