1 The file Indices contains data that represent the yearly rate of return (in percentage) for the Dow Jones Industrial Average (DJIA), the Standard & Poor's 500 (S&P 500), and the technology-heavy NASDAQ Composite (NASDAQ) from 2009 through 2012. These data are: Year DJIA S&P 500 NASDAQ

Year DJIA S&P 500 NASDAQ

2012 7.26 13.41 15.91

2011 5.50 0.00 -1.80

2010 11.00 12.80 16.90

2009 18.80 23.50 43.90

a. Compute the geometric mean rate of return per year for the DJIA, S&P 500, and NASDAQ from 2009 through 2012