Answer:
Sharpen Ratio = Rp - Rf
standard deviation of portfolio
= 13.8% - 3.6%
173.11%
= 0.05892
= 0.059
workings
Return of portfolio = Ra*wa + Rb*Wb
= 15%*0.6 + 12%*0.4
= 9% + 4.8% = 13.8%
Standard deviation of portfolio = square root of variance
= √ stdA²wa² + stadB²wb² + 2wawbcorrAB
= √(24%*0.6)² +(14%*0.4)² + 2*0.6*0.4*1.27
= √207.36% + 31.36% + 0.6096
= √2.9968
= 1.73
= 173.11%
Step-by-step explanation: