In: Finance
Using the data in the following table, and the fact that the correlation of A and B is 0.32, calculate the volatility (standard deviation) of a portfolio that is 80% invested in stock A and 20% invested in stock B.
Stock A Stock B
2005 -4 28
2006 19 20
2007 3 8
2008 -1 -8
2009 5 -9
2010 13 30