Please help me with the variance in part B. I have tried 30 and 0.30, both are incorrect.

Here are the percentage returns on two stocks. Digital Cheese 15% Executive Fruit 7% Month January February March April May June Cowbvou UN July August a-1. Calculate the monthly variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answer to 1 decimal place.) Answer is complete and correct. Digital Cheese 47.5 6.9 Executive Fruit 23.2 Variance Standard deviation 4.8 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 answer to 1 decimal place.) Answer is complete but not entirely correct. 0.3 Variance Standard deviation 5.5 Here are the percentage returns on two stocks. Digital Cheese 15% Executive Fruit 7% Month January February March April May June Cowbvou UN July August a-1. Calculate the monthly variance and standard deviation of each stock. (Do not round intermediate calculations. Round your answer to 1 decimal place.) Answer is complete and correct. Digital Cheese 47.5 6.9 Executive Fruit 23.2 Variance Standard deviation 4.8 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 answer to 1 decimal place.) Answer is complete but not entirely correct. 0.3 Variance Standard deviation 5.5