Why is my last answer wrong? Can anyone help me??

SECURITY MARKET LINE You plan to invest in the Kish Hedge Fund, which has total capital of $500 million invested in five stocks Stock Investment Stock's Beta Coefficient 0.8 2.0 3.9 1.0 3.4 A $160 million 120 million 80 million 80 million 60 million Kish's beta coefficient can be found as a weighted average of its stocks' betas. The risk-free rate is 3%, and you believe the following probability distribution for future market returns is realistic: Probability 0.1 0.2 0.4 0.2 0.1 Market Return (7%) 10 12 14 17 a. What is the equation for the Security Market Line (SML)? (Hint: First determine the expected market return.)