Question: Please help me with those question. Can't seem to figure out. The standard deviation of the market-index portfolio is 20%. Stock A has a beta


Please help me with those question. Can't seem to figure out.
The standard deviation of the market-index portfolio is 20%. Stock A has a beta of 1.5 and a residual standard deviation of 30%. a. Calculate the total variance for an increase of .15 in its beta. (Do not round intermediate calculations. Round your answer to 4 decimal places.) Total variance 0.1989 b. Calculate the total variance for an increase of 3% in its residual standard deviation. (Do not round intermediate calculations. Round your answer to 4 decimal places.) Total variance 0.19898
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