3. Calculate the standard deviation of portfolio of 3 Assets (Security B, C, and D)? Prob. Security A Security CSecurity DSecurityE Recession 0.1 3.0% -29.5% 24.5% 3.5% -19.5% Below avg 0.2 3.0% -9.5% : 10.5% -16.5% -55% Average 0.4 3.0% 12.5% -1.0% 0.5% 7.5% Above avg 0.2 3.0% 27,5% -5.0% 38.5% 22.5% Boom 0130% 42.5% -20.0% 23.5%