Fill in the missing information in the following table. Assume that Portfolio AB is 40 percent invested in Stock A. (Negative values should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Omit the "%" sign in your response.)

Annual Returns on Stocks A and B
Year	Stock A		Stock B		Portfolio AB
2009	15	%	23	%		%
2010	34.6	%	34.4	%		%
2011	16.2	%	44.4	%		%
2012	24.8	%	17.2	%		%
2013	15.4	%	27.6	%		%
Average return		%		%		%
Standard deviation		%		%		%