Consider an Espresso Stand with a Single Barista

question 70

Multiple Choice

Consider an espresso stand with a single barista.Customers arrive to 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 there are more than 2 customers in the system is

• A)0.128
• B)0.488
• C)0.512
• D)0.640

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