Here are returns and standard deviations for four investments. Treasury bills Stock P Stock Q Stock R Return (%) 5.0 9.5 14.0 22.0 Calculate the standard deviations of the following portfolios. a. 50% in Treasury bills, 50% in stock P. b. 50% each in Q and R, assuming the shares have: Standard Deviation (8) 0 15 23 27 Complete this question by entering your answers in the tabs below. Required A Required B Standard deviation 50% in Treasury bills, 50% in stock P. Note: Enter your answer as a percent rounded to 2 decimal places. %

Here are returns and standard deviations for four investments. Calculate the standard deviations of the following portfolios. a. 50% in Treasury bills, 50% in stock P. b. 50% each in Q and R, assuming the shares have: Complete this question by entering your answers in the tabs below. 50% in Treasury bills, 50% in stock P. Note: Enter your answer as a percent rounded to 2 decimal places