9.LLX Using the data in the following table, estimate the average return and volatility for each stock (see MyFinanceLab for the data in Excel format) Realized Returns Year Stock A Stock EB 2008 10% 21% 2009 20% 30% 2010 5% 7% 2011 3% 2012 2% 8% 2013 9% 25% 10. Using your estimates from Problem 9 and the fact that the correlation of A and B is 0.48, calculate the volatility (standard deviation) of a portfolio that is 70% invested in stock A and 30% invested in stock B