15. What is the expression that computes the composition of a portfolio on the capital allocation line. 16. Is there any restriction on the value of Rf? 17. What is the mutual fund theorem. 18. Give as many details as possible for the next plot. 0.025 0.020 0.015 Portfolio expected return 0.010 0.005 0.000 -0.005 0.00 0.05 0.10 0.15 0.20 Portfolio standard deviation