PLEASE SHOW USING EXCEL

Consider the following probability distribution for stocks A, B, and C:

State of Economy	Probability	Ret. on A	Ret. on B	Ret. On C
1	0.1	10%	8%	9%
2	0.2	13%	7%	5%
3	0.2	12%	6%	8%
4	0.3	14%	9%	10%
5	0.2	15%	8%	12%

Find the expected rate of return and standard deviation of the global minimum variance portfolio. (Hint: find the expected returns, variances, and covariances first.)