In a Bank Drive-Through, There Is a Single Service Window

question 16

Short Answer

In a bank drive-through, there is a single service window and room only for two cars to line-up to wait for service. The mean time between arrivals for drive through customers is 5 minutes. The mean time to complete a customer transaction is 3 minutes. The number of arrivals is distributed according to a Poisson distribution and the service times are exponentially distributed.
-What is the average time a customer spends in the system?

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Definitions:

Developmental Changes

Refers to the physical, cognitive, and emotional growth that occurs across the human lifespan.

Accommodation

Changes in existing ways of thinking that occur in response to encounters with new stimuli or events.

Schema

A cognitive framework or concept that helps organize and interpret information, based on experience, to make sense of the world.

Assimilation

The cognitive process of fitting new information into pre-existing cognitive schemas, perceptions, and understanding.