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