Question: may someone help me to solve this problem: Using the data in the followingtable, and the fact that the correlation of A and B is0.48,calculate

may someone help me to solve this problem: Using the data in the followingtable, and the fact that the correlation of A and B is0.48,calculate the volatility(standard deviation) of a portfolio that is70%invested in stock A and30%invested in stock B.

	Realized Returns
Year	Stock A	Stock B
2008	10%		21%
2009	20%		30%
2010	5%		7%
2011	5%		3%
2012	2%		8%
2013	9%		25%

The standard deviation of the portfolio is%.(Round to two decimalplaces.)

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