Using the data in the table a. What was the average annual return of Microsoft stock from 2005-2017? b. What was the annual volatility for Microsoft stock from 2005-2017? a. What was the average annual return of Microsoft stock from 2005-2017? The average annual return is %. (Round to two decimal places.) Data table (Click on the following icon in order to copy its contents into a spreadsheet.) Total dividends paid by the 500 stocks in the portfolio, based on the number of shares of each stock in the index, adjusted until the end of the year, assuming they were reinvested When paid. Source: Standard \& Poor's, Microsoft and U.S. Treasury Data