Consider an Espresso Stand with a Single Barista

question 71

Multiple Choice

Consider an espresso stand with a single barista.Customers arrive at the stand at the rate of 28 per hour according to a Poisson distribution.Service times are exponentially distributed with a service rate of 35 customers per hour.The probability that the server is idle is

• A)0.20
• B)0.60
• C)0.80
• D)1.00

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