a) Using the formula given below, calculate the annual returns and standard devia annual returns for the following portfolios (Calculations must be done manually. Show all workings). Please assume the following to answer this question: . A correlation coefficient of 0.235 between the returns of the two stocks Portfolio: P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 Weight for 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% Stock A Weight for 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% Stock B Expected ERP1 ERP2 ERP3 ERP4 ERPS ERP6 ERP7 ERPS ER.pg ERP Return SD SDP1 SDp2 SDp3 SDP4 SDP5 SDP6 SDP7 SDps SDp9 SDP Formula: Expected Return of ERp = EW x AAR a Portfolio, ERp SDp = Standard Deviation of a Portfolio, SDp V(W? * SDA) + (W} * SD;) + (2 *WA * Wg * SDA * 5DE [22 marks] b) Which portfolio(s) is/are good to create? Provide a reason. [3 marks]