A Statistic Professor Finds She Averages Five E-Mail Messages Per

question 34

Multiple Choice

A statistic professor finds she averages five e-mail messages per day from students. Assume the number of messages approximates a Poisson distribution.
What is the probability that on a randomly selected day she will have five messages?

• A) 0.0067
• B) 0.875
• C) 0.175
• D) 1.0
• E) None of the choices are correct

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Definitions:

Fossil Fuels

Fossil fuels are natural fuels such as coal, oil, and natural gas derived from the remains of living organisms that have been transformed over millions of years through heat and pressure.

Nonrenewable Energy Sources

Energy resources such as coal, oil, and natural gas that cannot be replenished in a short period of time and will eventually deplete.

Scarce Resources

Resources that are limited in availability and can be used in the production of goods and services.

Tradeoffs

The compromise or sacrifice of one thing in order to obtain another, often used in discussions of economic policy and individual choices.