Here are five stocks, their standard deviations, and their average rates of return for the previous years: Stock X: 9.3% o=45 Stock Y: 1.7% 0 = 12 Stock Z: -4.4% o = 28 Stock $: 10.6% o=19 Stock &: -7.0% o = 30 Find the Portfolio Rate of Return, the Portfolio Variance, and Portfolio Standard Deviation for these two investors: Aggie Investors: 40% Stock Y, 30% Stock Z, 30% Stock $ The correlation coefficient (p) between Stock Y and Stock Z is 0.4 The correlation coefficient (p) between Stock Y and Stock $ is -0.58 The correlation coefficient (p) between Stock Z and Stock $ is 0.23 The answers to those two test review questions are as follows: PR = 2.54% PV = 62.84 PSD = 7.93