The following represent the annual return of four stocks. You are asked to calculate the following: % return Year Stock A Stock B Stock C Stock D 2012 8 24 8 | 18 2013 10 | 2012 2014 12 16 16 19 2015 14 12 20 6 2016 16 8 24 19 Weights 20% 30% 40% 10% A.1. Calculate the average return of the portfolio that consists of the four stocks A.2. Calculate the standard deviation of the portfolio that consists of the four stocks ( this requires you to calculate the standard deviation of each stock, and the correlation coefficients between the stocks, and then to use the box methodology for four stocks) A.3. Is it an efficient portfolio from the rational investors point of view. B. Show along with your calculations, the steps you will apply to construct efficient portfolios using the marginality concept (hint: you shouldn't use the weighs above) The following represent the annual return of four stocks. You are asked to calculate the following: % return Year Stock A Stock B Stock C Stock D 2012 8 24 8 | 18 2013 10 | 2012 2014 12 16 16 19 2015 14 12 20 6 2016 16 8 24 19 Weights 20% 30% 40% 10% A.1. Calculate the average return of the portfolio that consists of the four stocks A.2. Calculate the standard deviation of the portfolio that consists of the four stocks ( this requires you to calculate the standard deviation of each stock, and the correlation coefficients between the stocks, and then to use the box methodology for four stocks) A.3. Is it an efficient portfolio from the rational investors point of view. B. Show along with your calculations, the steps you will apply to construct efficient portfolios using the marginality concept (hint: you shouldn't use the weighs above)