Customers Arrive at the One Remaining Full-Service Gas Station in the Country

question 54

Multiple Choice

Customers arrive at the one remaining full-service gas station in the country at the rate of 45 per minute and are served by the first available of three pump jockeys who can dole out gas and check oil at the rate of 20 customers per minute. Both service and interarrival times are governed by the exponential distribution. The probability that no pump jockey is busy is 0.0748.
-Use the information in Scenario C.3.What is the average number of customers in line?

• A) Fewer than or equal to 2.0
• B) Greater than 2.0 but fewer than or equal to 3.0
• C) Greater than 3.0 but fewer than or equal to 4.0
• D) Greater than 4.0

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Definitions:

Synapses

The junctions through which neurons signal to each other or to non-neuronal cells such as those in muscles or glands.

Action Potential

A rapid increase and decrease in the voltage across a cellular membrane due to the movement of ions, allowing neurons to transmit signals.

Electrical Charge

A fundamental property of matter that causes it to experience a force when placed in an electromagnetic field, categorized into positive and negative types.

Millivolts

A unit of electric potential and electromotive force equal to one thousandth of a volt, commonly used in various electrical and physiological measurements.