Using the following information for McDonovan, Inc.'s stock, calculate their expected return and standard deviation. State Probability Return Boom 20% 40% Normal 60% 15% Recession 20% (20%) I got this as answer: 23% 45% 20% Then I got this as an answer: 0.02*0.04+0.15*0.06+0.02*0.02 = 0.21 expected return =21% Then this answer: Expexted ret=(0.2)(0.4)+(0.6)(0.15)+(0.2)(0.2)=0.21=21% sd=E(x^2)-E(x)^2=0.078-0.0441=0.0339 Now I am even more confused than I was in the beginning. Any help would be appreciated. Thanks