The standard deviation of the market-index portfolio is 45%. Stock A has a beta of 1.20 and a residual standard deviation of 50%.

a.Calculate the total variance for an increase of 0.20 in its beta.(Do not round intermediate calculations. Round your answer to the nearest whole number.)

Total Variance: _________

b.Calculate the total variance for an increase of 9.61% in its residual standard deviation.(Do not round intermediate calculations. Round your answer to the nearest whole number.)

Total Variance: ___________