You have been approached by Onua Do Ltd who wants to know how their portfolio is fairing. The Company has over the years spread their funds in this order: 30% stock in A, 50% stock in B and the rest in stock C. State of Economy Probability Stock A Return Stock B Return Stock C Return Boom 0.10 24% 5% 14% Normal 0.70 11% 6% 9% Recession 0.20 -30% 7% -5% a). What is the standard deviation of their portfolio? (10 marks) b). Explain the following and analyze how they affects trading decision(s) making and analysis of investments: i) Snakebite effect ii) House-money effect iii) Endowment effect iv) Disposition effect v) Overconfidence