In Tryouts for the Olympics, a Speed Skater Had Times

question 17

Multiple Choice

In tryouts for the Olympics, a speed skater had times of 44.81, 43.36, 42.52, and 42.28 seconds. Find the average time. ( Hint: Add the numbers and divide by 4.)

• A) 42.52 sec
• B) 44.24 sec
• C) 172.96 sec
• D) 57.65 sec
• E) 43.24 sec

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Definitions:

Pollution Permits

Legal authorizations allowing entities to emit a specific amount of pollutants into the environment, used to regulate and reduce overall pollution levels.

Marginal Social Benefit

The additional benefit gained by society from the production or consumption of one more unit of a good or service.

Marginal Social Cost

The cost society bears for production of an additional unit of a good or service, including both private costs and any externalities.

Pollution Reduction

The process or activities aimed at decreasing the amount of pollutants released into the environment, including air, water, and soil.