Here are the returns on two stocks. Digital Cheese +17 January February March April May June July August -2 +4 +6 -3 +2 -1 -7 Executive Fruit +9 +1 +5 +15 +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? Complete this question by entering your answers in the tabs below. Reg A1 Reg A2 Req B Reqc Which stock is riskier if held on its own? Which stock is riskier if held on its own? Here are the returns on two stocks. January February March April May June July August Digital Executive Cheese Fruit +17 +9 -2 +1 +4 +5 +6 +15 -3 +2 +2 +5 -1 -2 - 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? Complete this question by entering your answers in the tabs below. Req A1 Reg A2 Reg B Reqc Now calculate the returns in each month of a portfolio that invests an equal amoun amounts should be indicated by a minus sign. Do not round intermediate calculatio places.) Month Portfolio Return January February March April May June Here are the returns on two stocks. January February March April May June July August Digital Executive Cheese Fruit +17 +9 -2 +1 +4 +5 +6 +15 -3 +2 +2 +5 -1 -2 -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? Complete this question by entering your answers in the tabs below. Reg A1 Req A2 Req B Reqc Is the variance more or less than halfway between the variance of the two individ Is the variance more or less than halfway between the variance of the two individual stocks?