TERMEDIATE 21. Two securities have the following characteristics: Expected return Standard deviation Beta Security A 15% 4% 0.90 Security B 12% 6% -0.25 pieros Analysis of Risk and Return 305 Furthermore, the correlation of returns between the securities is -1.0. Determine the risk (standard deviation) of a portfolio consisting of equal proportions of Secu- rities A and B. ENGE