Everything is correct. I only need part b. Thank you

Here are the percentage returns on two stocks. Executive Fruit 7% Month January February March April May June July August Digital Cheese 15% -4 5 7 -5 bww divut -3 a-1. Calculate the monthly variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answers to 1 decimal places.) Digital Cheese Executive Fruit Variance 53.6 22.2 Standard deviation % 7.3 4.7 a-2. Which stock is the riskier 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.) Variance Standard deviation % c. Is the variance more or less than half way between the variance of the two individual stocks? more than the 50%-50% less than the 50%-50%