Consider an Espresso Stand with a Single Barista

Multiple Choice

Consider an espresso stand with a single barista.Customers arrive at the rate of 20 per hour according to a Poisson distribution.Service times are exponentially distributed with a mean service time of 2 minutes per customer.What is the service rate per hour for the espresso stand?

A) 30 customers
B) 20 customers
C) 15 customers
D) 2 customers