Suppose the market portfolio is equally likely to increase by 22 % or decrease by 11 %

a. Calculate the beta of a firm that goes up on average by 32% when the market goes up and goes down by 16 % when the market goes down.

b. Calculate the beta of a firm that goes up on average by 25 % when the market goes down and goes down by 30 % when the market goes up.

c. Calculate the beta of a firm that is expected to go up4% independently of the market.