Returns of Stocks X and Y
	X	Y
Average Return	19.00%	13.00%
Variance	0.09	0.04
Standard Deviation	30%	20%
Covarience	0.01
Risk-free return	3.00%

1) What is the return and standard deviation of the minimum variance portfolio for X and Y?

2) What are the weights of the minimum variance portfolio?

3) What is the return and standard deviation of a portfolio composed of 30% in the minimum variance portfolio and 70% in the risk free asset?

4) What are the weights of a portfolio composed of the minimum variance portfolio and the risk-free asset that has a return of 9%??

5b) What are the weights of a portfolio composed of the minimum variance portfolio and the risk-free asset that has a standard deviation of 5%

6a) What is the Sharpe ratio of the minimum variance portfolio?

6b) What is the Sharpe ratio of the tanget portfolio?

Please help me solve these using excel. Thank You!