pleas help !!!

tate probability Return on RETURN ON B POOR 40% -0.09 -0.09 NORMAL 35% 0.18 0.11 GOOD 25% 0.25 0.3 Weight a Weight b 4 .6 what is the return of stock a what is the return of stock b what is the standard deviation on stock a? Time left 0:43:44 what is the return of stock b what is the standard deviation on stock a? what is the standard deviation on stock b? what is the coefficients of variation on stock a? what is the return of the portfolio? what is the correlation what is the standard deviation of the portfolio