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:

Hematoma

A localized collection of blood outside of blood vessels, usually in liquid form within the tissue.

Infiltrated IV Line

A complication where IV fluid leaks into the surrounding tissue instead of the vein, often causing swelling, pain, and bruising.

Data Entry Errors

Mistakes made during the input of data into a computer system or database, which can compromise the integrity of the data.

Confidentiality

The practice of keeping sensitive information secret, especially in healthcare, to protect patient privacy.