Digital Cheese +13 -2 +4 +6 January February March April May June July August Executive Fruit +6 +1 +4 +14 +2 +5 -2 -1 Required: a-1. Calculate the variance and standard deviation of each stock. a-2. Which stock is riskier if held on its own? b. Now calculate the returns in each month of a portfolio that invests an equal amount each month in the two stocks. c. Is the variance more or less than halfway between the variance of the two individual stocks? Answer is not complete. Complete this question by entering your answers in the tabs below. Reg A1 Reg A2 ReqB Reqc Calculate the variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Digital Cheese Retum 33.75 % 5.81 Executive Fruit Return % Variance Standard deviation Reg A1 Reg AZ Red B Reqc Now calculate the returns in each month of a portfolio that invests an equal amount each month in the two stocks. (Negative amounts should be indicated by a minus sign. Do not round Intermediate calculations. Round your answers to 2 decimal places.) Month Portfolio Return January February March April May June July August Reg A2 Regc >