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.) 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