month stock A market 1 -0.54% -1.96% 2 6.42% 3 3.13% -0.52% 3.42% 5.37% 4 5 6 7.49% 1.88% 0.47% 3.79% 6.81% The average monthly return of stock A and the market are determine the varience of monthly return of the stock and market in percentage squared terms the beta of stock a is the expected return of a portfolio consisting of 400,000 invested in stock A and 200,000 invested in the market the standard deviation of the portfoio is the percentaage of Firm A's systematic risk is