explain in deep and don't use excel

Short Answer Question - Please include your answer below The market portfolio produces an 80% change (or range) in excess return, depending on whether the economy is in boom or recession. A Type S firm, with purely systematic risk moves 50% when the economy is in boom and -20% when the economy is in recession. A Type I firm, with purely idiosyncratic risk, moves independently. What are the Betas of the Type S and Type I firms? (Keep all decimals and format your answer like this: X,X) Short Answer Question - Please include your answer below The market portfolio produces an 80% change (or range) in excess return, depending on whether the economy is in boom or recession. A Type S firm, with purely systematic risk moves 50% when the economy is in boom and -20% when the economy is in recession. A Type I firm, with purely idiosyncratic risk, moves independently. What are the Betas of the Type S and Type I firms? (Keep all decimals and format your answer like this: X,X)