The Local Grocery Store Consists of Two Cashiers

question 70

Short Answer

The local grocery store consists of two cashiers. The customers arrive at the checkout according to the Poisson distribution and the service times are based on negative exponential distribution. The average customer service time is 4 minutes and the average time between the arrivals of successive customers is 3 minutes. Assume that customers equally divide themselves between the two cashiers.
-On average, how many customers are waiting in line to be served?

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Definitions:

Vertebral Column

The vertebral column, or spine, is a series of interconnected bones and discs that provide support for the body and protect the spinal cord.

Lordosis

Lordosis refers to the inward curvature of a part of the lumbar and cervical spine, appearing as a swayback posture.

Scoliosis

A condition characterized by an abnormal lateral curvature of the spine.

Foramen Magnum

The Foramen Magnum is a large opening in the base of the skull through which the spinal cord connects to the brain.