Determine the tangency portfolio of the three stocks (i.e. determine the weights that the three stocks have in the portfolio:

Stock	Std. Deviation Of the return	Expected return	Correlation with return on Y	Correlation with return on Z
X	0,2	0,15	0,8	-0,1
Y	0,3	0,1	1	0,2
Z	0,25	0,12	0,2	1
R(f)	5%
		X	Y	Z
Problem 1.1 + 1.2	X	0,04	0,048	-0,005
	Y	0,048	0,09	0,015
	Z	-0,005	0,015	0,0625