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Suppose you have invested only in two stocks, A and B. You expect that returns on the stocks depend on the following three states of economy, which are equally likely to happen. State of Economy Return on Stock A (%) Return on Stock B (%) Bear -4.7% Normal 11.5 5.4 Bull 16.6 24.3 1. Calculate the expected return of each stock. 2. Calculate the variance and standard deviation for each stock 7.3%