Based on the following data; (a) calculate the expected return and the standard deviation of returns for each stock.State of the Economy Probability Stock A Rate of Return Stock B Rate of ReturnRecession 0.2 4% -20%Normal Growth 0.65 8% 20%Boom 0.15 16% 60% (b) Calculate the expected return and the standard deviation on the portfolio, wherethe portfolio is formed by investing 50% of the funds in Stock A and the rest in Stock B.(c) Calculate the expected return and the standard deviation on the portfolio, wherethe portfolio is formed by investing 70% of the funds in Stock A and the rest in Stock B.(From Chapter 1