At a Highway Checkpoint,the Average Speed of a Passing Car

question 263

Multiple Choice

At a highway checkpoint,the average speed of a passing car was measured at 50 miles per hour with a standard deviation of 5 miles per hour.According to Chebyshev's Theorem,what percentage of cars would you expect to be traveling between 42.5 and 57.5 miles per hour?

• A)at least 50%
• B)at least 55.6%
• C)at least 75%
• D)at least 88.9%

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Definitions:

Organic Garden

A garden that grows plants without using synthetic pesticides or fertilizers, focusing on sustainability and natural processes.

Alpine Tundra

An ecosystem found in high mountain regions around the world, characterized by low temperatures, windy conditions, and sparse vegetation.

Arctic Tundra

A cold, windy, and treeless biome that covers much of the Arctic regions, characterized by permafrost, minimal vegetation, and a short growing season.

Biomes

Large ecological zones on Earth's surface, characterized by distinct climates, plants, and animals, such as forests, deserts, and tundras.