Assume That Interest Rates on 20-Year Treasury and Corporate Bonds $\text { T-bond } = 7.72 \% \quad \text { AAA } = 8.72 \% \quad \text { A } = 9.64 \% \quad \text { BBB } = 10.18 \%$

question 14

Multiple Choice

Assume that interest rates on 20-year Treasury and corporate bonds are as follows:
$\text { T-bond } = 7.72 \% \quad \text { AAA } = 8.72 \% \quad \text { A } = 9.64 \% \quad \text { BBB } = 10.18 \%$
The differences in these rates were probably caused primarily by:

• A) Tax effects.
• B) Default and liquidity risk differences.
• C) Maturity risk differences.
• D) Inflation differences.
• E) Real risk-free rate differences.

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Definitions:

Standard Deviation

A measure of the dispersion or spread of a set of data points from its mean, indicating how much variation exists from the average.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values in a dataset deviate from the mean.

Nonconforming Items

Products or outputs that do not meet the specified standards or quality criteria.

Samples

Selected portions or subsets of a population, used in statistical analysis to estimate characteristics of the whole population.