A Huge Trucking Firm Determines That Its Fleet of Trucks

question 79

Multiple Choice

A huge trucking firm determines that its fleet of trucks averages a mean of 12.4 miles per gallon with a standard deviation of 1.2 miles per gallon on cross-country hauls. The distribution of miles per gallon is approximately normally distributed.What is the probability that a randomly selected truck averages fewer than 10 miles per gallon?

• A)0.0082
• B)0.0228
• C)0.4772
• D)0.5228
• E)0.9772

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Definitions:

Skin Test

A medical test where a small amount of substance is placed on or under the skin to check for an allergic reaction or disease.

Usual Dose

The common amount of a medication recommended for administration under normal circumstances.

Intramuscular Injection

A method of administering medication deep into the muscles, allowing the drug to be absorbed into the bloodstream quickly.

Mixing Medications

The process of combining different drugs to ensure proper dosing and compatibility, often conducted in healthcare settings.