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The arrival times in a waiting-line (queuing) model follow which probability distribution?
A. Binomial.
B. Chi-square.
C. Poisson.
D. Exponential.
Correct Answer: C
Explanation/Reference:
Explanation:
Queuing models assume that arrivals follow a Poisson process: The events (arrivals) are independent, any number of events must be possible in the interval of time, the probability of an event is proportional to the length of the interval, and the probability of more than one event is negligible if the interval is sufficiently small.
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