Customers Arrive at a Common Queue at the Coffee Station

question 44

Multiple Choice

Customers arrive at a common queue at the coffee station with two identical coffee machines in a busy mall at the rate of 48 per hour, following Poisson distribution. Each customer mixes his or her specialty coffee taking 2 minutes on an average following an exponential process. What is the expected number of customers in the system at this coffee station?

• A) infinity
• B) 2.844
• C) 2.444
• D) 4.444
• E) 3

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