Answer and Explanation:
The computation is shown below:
a. For coefficient of variation
CVx is
= Standard deviation ÷ expected return
= 35% ÷ 10.5%
= 3.33
CVy is
= Standard deviation ÷ expected return
= 25% ÷ 12.5%
= 2
b. For required rate of return using the Capital Asset Pricing model , the formula is shown below:
= Risk free rate of return + Beta × market risk premium
For rx, it is
= 6% + 1 × 5%
= 6% + 5%
= 11%
For ry, it is
= 6% + 1.2 × 5%
= 6% + 6%
= 12%
c. For required rate of return of a portfolio, first we have to find out the beta which is shown below
Beta = (Invested amount in Stock X ÷ Total investment amount) × (Beta of stock X) + (Invested amount in Stock Y ÷ Total investment amount) × (Beta of stock Y)
= ($9,000 ÷ $12,500) × (1) + ($3,500 ÷ $12,500) × 1.2)
= 0.72 + 0.336
= 1.056
The total investment amount is
= $9,000 + $3,500
= $12,500
Now the required rate of return of a portfolio is
= Risk free rate of return + Beta × market risk premium
= 6% + 1.056 × 5%
= 6% + 5.28%
= 11.28%
Therefore we applied the above formulas