Use the Empirical Rule to Solve the Problem

question 37

Multiple Choice

Use the empirical rule to solve the problem.
-The amount of Jen's monthly phone bill has a roughly bell-shaped distribution with a mean of $57 and a standard deviation of $9. What percentage of her phone bills are between $30 and $84?

• A)99.7%
• B)95%
• C)99.99%
• D)68%

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Definitions:

Cross-dresses

The act of wearing clothes traditionally associated with the opposite sex.

Entertain

To amuse, engage, or host someone or a group of people through performances, activities, or hospitality.

Telephone Scatologia

A paraphilia involving recurrent, intense urges to make obscene telephone calls.