show steps and calculations please

Based on the following information, calculate (1) the expected return and standard deviation for each of the two stocks; and (2) the expected return and standard deviation for a portfolio that invests 60% in Stock A and 40% in Stock B. Assume paB = 0.6. State of Probability of Economy State of Economy Recession ??? Normal 0.50 Boom 0.30 Rate of Return Stock A 0.02 0.08 0.10 Rate of Return Stock B -0.20 0.10 0.30