Question: 6. Using the data in the following table, estimate: (a) The average return and volatility for each stock (b) The covariance between the stocks (c)

6. Using the data in the following table, estimate: (a) The average return and volatility for each stock (b) The covariance between the stocks (c) The correlation between these two stocks (d) Calculate the volatility of a portfolio that is 70% invested in stock A and 30% invested in stock B.

A B
2004 -10% 21%
2005 20% 7%
2006 5% 30%
2007 -5% -3%
2008 2% -8%
2009 9% 25%

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