Cars Arrive at a Single-Bay Car Wash at an Average

question 67

Multiple Choice

Cars arrive at a single-bay car wash at an average of 6 per hour according to the Poisson distribution. The wash time averages 4 minutes with a standard deviation of 1 minute, but the wash time is not defined by any distribution. What is the average number of cars in line?

• A) .142
• B) .267
• C) .283
• D) 2.83

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Definitions:

Make-Or-Buy Decision

A strategic decision that businesses use to determine whether they should produce an item internally or buy it from an external supplier.

Supplier Relationships

The interactions and partnerships formed between a buying company and its suppliers, crucial for ensuring supply chain efficiency and resilience.

Services On Demand

The delivery of services exactly when they are needed or requested by customers, often facilitated by technology and the digital economy.

E-Purchasing

The process of buying goods and services via electronic means, particularly through the internet, for businesses or personal use.