Answer:
Step-by-step explanation:
Using the expected rate of return we have this formula :
Treasury bills are the risk free 4% investment and market rate is 10%
assuming that of the secuirty is 1.2
Beta is the how much return of market premuim we want from security
market premuim = Rm-Rf
CAPM = Rf+(Rm-Rf)*beta
CAPM = 4%+(10-4%)*1.2
CAPM = 11.2%
So the expected rate of return is 11.2% for security A whose beta is 1.2