Consider the following table for Stocks A and B

Economy Probability of Return Return on A Return on B

Good $20\%15\%20\%$

Normal $50\%10\%8\%$

Bad $30\%5\%-10\%$

Calculate the following and show calculations$/$calculator keys

a$.$ Expected return, Standard Deviation, and Coefficient of Variation of Stock A

b$.$ Expected return, Standard Deviation, and Coefficient of Variation of Stock B

c$.$ Which stock is better A or B and why?

d$.$ Expected Return on Portfolio $(70\%$ in stock A and $30\%$ in Stock B$)$

e$.$ Standard Deviation of Portfolio $(70\%$ in stock A and $30\%$ in Stock B$)$

f$.$ Calculate Beta of stock A and Beta of stock B$,$ Assume that stock B is the market stock $($Show calculations for Covariance$)$

plz no excel