The expected return of Riverbed is 17.6 percent, and the expected return of Marin is 22.6 percent. Their standard deviations are 11.6 percent and 19.6 percent, respectively. If a portfolio is composed of 30 percent Riverbed and the remainder Marin, calculate the expected return and the standard deviation of the portfolio, given a correlation coefficient between Riverbed and Marin of 0.35 . (Round intermediate calculations to 4 decimal places, e.g. 31.2125 and final answers to 2 decimal places, e.g. 15.25\%.) Calculate the standard deviation if the correlation coefficient is -0.35 . (Do not round intermediate calculations. Round answer to 2 decimal places, e.g. 15.25\%.) Standard deviation of portfolio %