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state probability Return on RETURN ON A B POOR 35% -0.06 0.08 NORMAL 15% 0.2 0.14 GOOD 50% 0.2 0.15 weight a is 65% what is the return of stock a what is the return of stock b? what is the standard deviation of a? what is the standard deviation of b? what is the covariance what is the return of a portfolio