Here are the percentage returns on two stocks. Month January February March April May June July August Digital Cheese 14% -5 7 9 Executive Fruit 8% 1 3 13 2 -5 8-1. Calculate the monthly variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 1 decimal places.) Answer is not complete. Digital Cheese 1.43 Executive Fruit 0.2 Variance Standard deviation % Answer is not complete. Digital Cheese 1.43 Executive Fruit 0.2 Variance Standard deviation % a-2. Which stock is the riskler if held on its own? Digital Cheese Executive Fruit b. Now calculate the variance and standard deviation of the returns on a portfolio that invests an equal amount each month in the two stocks. (Do not round intermediate calculations. Round your answers to 1 decimal places.) Answer is complete but not entirely correct. 34.4 Variance Standard deviation 5.9 x