3. Following table gives the month-end prices and dividend data for two stocks and market index. Month UBL Attock Cement KSE-100 Price Dividend Price Dividend October-11 55.900 52.00 4.50 13,801.41 September-11 60.14 54.02 13,786.62 August-11 56.01 1.50 44.01 13,990.38 July-11 60.691 46.88 13,761.76 June-11 61.911 48.53 12,877.88 May-11 64.84 54.89 11,874.89 April-11 63.76 53.27 11,347.66 a. Calculate the monthly returns for each stock and market. b. Calculate the average monthly return and standard deviation for each stock and market. c. Calculate the correlation between the two stocks and comment on the result. d. Calculate the average return and standard deviation of a portfolio having equal investment in each of the two stocks