The Index Model Has Been Estimated for Stocks a and B

question 85

Multiple Choice

The index model has been estimated for stocks A and B with the following results: R_A = 0.01 + 0.6R_M + e_A.
R_B = 0.02 + 1.2R_M + e_B.
Σ_M = 0.30; σ(e_A) = 0.20; σ(e_B) = 0.10.
The standard deviation for stock A is

• A) 0.0656.
• B) 0.0676.
• C) 0.3499.
• D) 0.2600.

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Definitions:

S&P 500

A U.S. stock market index reflecting the market value of 500 major companies with common stock on the NYSE or NASDAQ.

Correlation

A statistical measure that describes the degree to which two variables move in relation to each other.

Standard Deviation

A statistical measure that represents the dispersion or variability of a data set or investment returns around the mean.

Covariance

A measure of the degree to which two variables move in relation to each other. It can indicate if the movements are positively or negatively correlated.