Req A1 Req A2 Req B Req C Which stock is riskier if held on its own? Which stock is riskier if held on its own? Req A1 Req A2 Req B Req C Now calculate the returns in each month of a portfolio that inv amounts should be indicated by a minus sign. Do not round in places.) Portfolio Month Return January February March April May June July August Req A1 Req A2 Req B Req C Is the variance more or less than halfway between the variance of the two individual stocks? Is the variance more or less than halfway between the variance of the two individual stocks? Here are the returns on two stocks. Digital Executive Cheese Fruit January +17 +9 February -2 +1 March +4 +5 April May June +6 +15 -3 +2 +2 +5 July -1 -2 August -7 -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? Req A1 Req A2 Req B Req C Calculate the variance and standard deviation of each stock. (Do not 2 decimal places.) Variance Standard deviation Digital Cheese Retum Executive Fruit Return % %