Calculate the expected return and standard deviation of portfolios with the following weights. a) Weight in security A is 0.6 and weight in security C is 0.4. b) Weight in security A is 0.4, weight in security B is 0.2, and weight in security C is 0.4. c) Provide a brief comment on the risk characteristics of the above portfolios.

petedRura artances and Return Variances and Covartances 002