The following table shows the closing price of the Dow Jones Industrial stock market during 2012:

Date Closing Price September 28, 2012 13,437 October 31, 2012 13,096 November 30, 2012 13,026 December 31, 2012 13,104 Problems 1.21 and 1.22 refer to the following data, which show the median weekly earnings of full-time workers by gender over a five-year period:

Year Men Women 2008 $798 $638 2009 $819 $657 2010 $824 $669 2011 $854 $691 2012 $832 $684 AppendixLO1