The following table gives the value of the Dow Jones Industrial Average (DJIA), NASDAQ, and the S& P 500 on the first day of trading for the years 2008 through 2010.

a. For each stock index, compute the rate of return from 2008 to 2009 and from 2009 to 2010.
b. Calculate the geometric mean rate of return for each stock index for the period from 2008 to 2010.

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NASDAQ aP soo Year 2008 2009 2010 DJIA 13,043.96 9,034.69 10,583.96 S&P 500 2,609.63 1,632.21 2,308.42 1A47.16 931.80 1,132.99