Hello, I need answers for these questions please.

Stock c provided in the table

Stock C Rate of Return Probability (p) (r) 12 % 30 % or 0.30 9% 50 % or 0.50 -8% 10 % or 0.10 Optimistic Most Likely Pessimistic The Economic Status 1. Calculate the Expected Rate of Return E(r) for Stock C. (20 points) 2. Calculate Variance and Standard Deviation for Stock C. (25 points) 3. Calculate the Sharpe Ratio, assuming risk free rate is 4%. (10 points) Stock C Rate of Return Probability (p) (r) 12 % 30 % or 0.30 9% 50 % or 0.50 -8% 10 % or 0.10 Optimistic Most Likely Pessimistic The Economic Status 1. Calculate the Expected Rate of Return E(r) for Stock C. (20 points) 2. Calculate Variance and Standard Deviation for Stock C. (25 points) 3. Calculate the Sharpe Ratio, assuming risk free rate is 4%. (10 points)