Here are the returns on two stocks. Digital Cheese +13 -2 +4 +6 January February March April May June July August Executive Fruit +6 +1 +4 +14 +2 5 -2 +2 Required: a-1. Calculate the variance and standard deviation of each stock. a-2. Which stock is riskler 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 vbriance of the two individual stocks? Complete this question by entering your answers in the tabs below. Reg A1 Reg Az Reg B Reg C Calculate the variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Reg A1 Reg A2 Reg B Reg C Calculate the variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Digital Cheese Retum % Executive Fruit Return 96 Variance Standard deviation 3 Regal Reg A2 Complete this question by entering your answers in the tabs below. Req A1 Relaz Req B Reqc Which stock is riskier if held on its own? Which stock is riskier it held on its own? Reg A1 Reg A2 Reg B Reg C 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 os January February March April May June July August Book Complete this question by entering your answers in the tabs below. prences Reg A1 Reg A2 Reg Reg C Is the variance more or less than halfway between the variance of the two individual stocks? As the variance more or less than halfway between the variance of the two individual stock?