For a Single-Server, Single-Line, Single-Phase Waiting Line System, Where

question 82

Multiple Choice

For a single-server, single-line, single-phase waiting line system, where  represents the mean arrival rate of customers and  represents the mean service rate, what is the formula for the average number of customers in the system?

• A)  / 
• B)  / (    )
• C)  ² /  (    )
• D) 1 / (    )
• E)  /  (    )

---

Definitions:

Conventional Fossil Fuel

Conventional fossil fuels are natural resources like coal, oil, and natural gas, that have been formed from the decayed remains of ancient plants and animals, used primarily for energy.

Three Mile Island

The site of the United States' worst commercial nuclear power plant accident, occurring in 1979 in Pennsylvania.

CANDU Reactors

A type of nuclear reactor developed in Canada that uses heavy water (deuterium oxide) as both its coolant and neutron moderator, allowing it to use natural uranium as fuel.

Dirtiest Fossil Fuel

Coal, regarded as the most harmful to the environment due to its high carbon dioxide emissions when burned, contributing significantly to air pollution and climate change.