What is the average number of vehicles waiting to be served

Reference no: EM13555107

An expressway off-ramp consisting of a single lane leads directly to a tollbooth. The rate of arrival of vehicles at the expressway can be considered to be Poisson with a mean of 30 veh/h. and the rate of service to vehicles can be assumed to be exponentially distributed with a mean of 1.2 min. What is the average number of vehicles waiting to be served at the booth (not including the vehicle being serviced)?

Reference no: EM13555107

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