As an investor you have the following information:

Probability Stock X Stock Y Stock Z

Probability	Stock X	Stock Y	Stock Z
0.20	0.30	0.45	0.33
0.40	0.12	0.10	0.15
0.30	0.01	-0.15	-0.05
0.10	-0.06	-0.30	-0.09

a) Consider your portfolio consists of 40% of stock X, and 30% each of Stock Y and stock Z. Calculate your expected portfolio return?

b) If the treasury bill rate is 4.00%, what is the expected risk premium of your portfolio?