Mary, a finance student at IBS, hold a portfolio which consists three stocks (one each) of: stock A, stock B, and stock C. Please note the following information about these stocks:

	Stock A	Stock B	Stock C
Price	$80	$100	$70
Return	10%	8%	13%
Standard deviation	0.35	0.1	0.5

[Quantitative Methods for Finance FINB113] Examination, Version [A]

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Correlation between A and B	0.2
Correlation between B and C	0.4
Correlation between A and C	0.3

Questions:

a- Please calculate the portfolios expected return

b-Please calculate the portfolios variance