Suppose the market portfolio is equally likely to increase by 20% or decrease by 13%. a. Calculate the beta of a firm that goes up on average by 39% when the market goes up and goes down by 29% when the market goes down. b. Calculate the beta of a firm that goes up on average by 13% when the market goes down and goes down by 28% when the market goes up. C. Calculate the beta of a firm that is expected to go up by 4% independently of the market. How would it be here in tiny steps please?