A security analyst has obtained the following information based on the future focused and possible states of economy in a country. State of the Economy Boom Average Recession Required: (i) (iv) Portfolio return Probability 0.5 0.3 0.2 Expected return of each company securities Standard deviation (risk) for each company security return Portfolio risk Security Alpha ltd Security Omega Ltd 22% 272% 17% 23% 12% 15%