A stock has a beta of 19.5 and an expected return of 12%. A risk free asset currently earns 3.8%. (please show your calculation and formula used)
a) What is the expected return on a portfolio that is equally invested in the two assets?
b) If portfolio of the two assets has a beta of .78, what are the portfolio weights?
c) If the portfolio of the two assets has an expected return of 10%, what is its beta?
d) If a portfolio of the two assets has a beta of 3.9, what are the portfolio weights?