Here are the returns on two stocks.

Problem 11-19 Diversification (LO3) Here are the returns on two stocks. January February March April May June July August Digital Cheese +13 -3 +5 +7 -4 +3 -2 Executive Fruit +6 +1 +4 +15 +2 +6 -3 -8 a-1. Calculate the variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Answer is complete but not entirely correct. Digital Cheese Executive Fruit Retum Return Variance 47.48 % 6.89 % Standard deviation 23.23 4.82 a-2. Which stock is the riskier if held on its own? Digital Cheese Executive Fruit b. 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.) Answer is not complete. Month Portfolio Return January February March April May June July August c. Is the standard deviation more or less than half way between the variance of the two individual stocks? Less More