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Trader Joe’s has one register open with the customer service employee able to process one customer...

Trader Joe’s has one register open with the customer service employee able to process one customer every 4.8 minutes. There are approximately 2 customers checking out per hour (i.e., arrival rate during off-peak hour).  

What is the utilization of the customer service employee ?

What is the average number of customers in the waiting line?

What is the average customer waiting time in line (in minutes)?

What is the probability that there will be more than one customer waiting in line?

What is the probability that there will be less than 3 customers waiting in line?

business   Operations-Management   
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