Use the Empirical Rule to Solve the Problem

question 79

Multiple Choice

Use the empirical rule to solve the problem.
-The amount of Jen's monthly phone bill is normally distributed with a mean of $55 and a standard deviation of $12. What percentage of her phone bills are between $19 and $91?

• A) 99.7%
• B) 99.99%
• C) 95%
• D) 68%

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Definitions:

Real Terms

Refers to economic indicators or values that have been adjusted for inflation, allowing for the comparison of quantities as if prices had not changed over time.

Deposits

Funds placed into an account at a financial institution for safekeeping, which may earn interest over time depending on the account type.

Coupon Bond

A type of bond that pays the holder a fixed interest rate (coupon) periodically until the maturity date, at which point the principal amount is repaid.

Yield To Maturity

The total return expected on a bond if it is held until the maturity date.