Based on the following information regarding Stock Uno, Stock Dos and Stock Tres a) calculate the expected return and standard deviation for the three-asset portfolio assuming the portfolio consists of 1/3 of A, 1/3 of B, and 1/3 C (meaning equal amounts of each stock in the portfolio). b) would you prefer a portfolio of 20% A, 30% B and 50% B? Why or why not? Present your answers on an Excel Sheet with formulas Economic State A B C Boom Good Poor Probability of State of Nature 33.33% 33.33% 33.33% -1% 4% 12% 24% 11% 3% 4% 4% 4%