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In a waiting line situation, arrivals occur at a rate of 2 per minute, and the service times average 18 seconds. a. Find the probability

In a waiting line situation, arrivals occur at a rate of 2 per minute, and the service times average 18 seconds.

a. Find the probability of no units in the system.

b. Find the average number of units in the system.

c. Find average time in the system.

d. Fins probability that there is one person waiting,

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