Fill in the missing information in the following table. Assume that Portfolio AB is 40 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 % 2015 2016 Annual Returns on Stocks A and B Stock A Stock B 11.0 % 19.0% 33.0 % -32.0 % -13.0 % 42.0% 24.0% 18.0 % 17.0 % 30.0 % Portfolio AB % % % % 2017 2018 2019 Average return Standard deviation % % % % % % %