Problem 11-13 More Portfolio Variance (LO4, CFA3) The expected return and standard deviation of a portfolio that is 70 percent invested in 3 Doors, Inc., and 30 percent invested in Down Co. are the following: Expected return, E(R) Standard deviation, 3 Doors, Inc. Down Co. 17% 60 14% 28 What is the standard deviation if the correlation is +1? 0? -1? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Correlation +1 Correlation 0 Correlation -1 Standard Deviation % % %