please answer the red boxes. I got them wrong. Please show work.

Question 7 Below is annual stock return data on ABC Corp and XYZ, Inc. Year ABC XYZ 2010 10% -3% 20% 0% 2011 2012 -10% 20% 2013 4% 10% (a) Your answer is correct. What is the average return and standard deviation for each stock? (Round answers to 2 decimal places, e.g. 52.75.) ABC XYZ Average return 6.001% 6.75 % Standard deviation 12.54% 10.44 % SHOW SOLUTION LINK TO TEXT LINK TO TEXT (b) x Your answer is incorrect. Try again. What is the expected portfolio return on a portfolio comprised of i. 25% ABC and 75% XYZ? ii. 50% ABC and 50% XYZ? (Round answers to 3 decimal places, e.g. 5.275.) E(Portfolio Return) 25% ABC and 75% XYZ 6.125 % 50% ABC and 50% XYZ 6 %