1. Karen wants to build a two-asset portfolio that includes a proxy for the market portfolio (the S&P 500) and the risk-free asset that has an expected return of 9.04%. What percentage of her portfolio would be invested in the S&P 500 if the return on the T-bill is 2.5% and the expected return on the S&P 500 is 8.5%
2. What is the standard deviation of a two-asset portfolio comprised of Stock A and Stock B if both Stock A and Stock B have a variance of 0.2209, the correlation coefficient between the two stocks is -0.17, and Stock A makes up 24% of the portfolio?