3. The following table shows the past daily returns for 3M and AAL. a. Please find the expoctod retum, standand deviation and coeflicient of variation for EACH stock and a Portfolio that puts 20%6 weight on 3M and 80% weight on AAL. b. Please calculate the geometrie mean of the retums for 3M,AAL, and the portolio separately. c. To minimirs the coefreient of variation of the portfolio, how much weight should be assigned for 3M