Fill in the missing information in the following table. Assume that Portfolio AB is 60 percent invested in Stock A. (A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Year Portfolio AB : % 2015 2016 2017 2018 2019 Average return Standard deviation Annual Returns on Stocks A and B Stock A Stock B 16.0 % 24.0 % 35.0 % -35.0 % -17.0 % 45.0 % 25.0 % 17.0 % 15.0 % 27.0 % 14.80% 15.60% % % % % % % 15.12% %