Question 17 (7 points) Suppose that the market portfolio is equally likely to increase by 24% or decrease b 8%. Security "X" goes up on average by 29% when the market goes up and goes down by 11% when the market goes down. Security "Y" goes down on average by 16% when the market goes up and goes up by 16% when the market goes down. Security "Z" goes up on average by 4% when the market goes up and goes up by 4% when the market goes down. What is the beta for each company, "X", "Y" and "Z"? Company X: Company Y: Company Z: