Meizi Li Huc 108 Visual Aid Assignment This is a line chart of seeing how John McCain and Barack Obama compare in state and national pools that asked people which candidate they would vote for in the presidential race. The x-ray is from March 2008 to Oct 2008, and the y-ray is from 0% to 63% majorly divided by 13%. This line shows both Barack Obama and John McCain are majors. The numbers of two of them is inverse proportion. When the numbers of McCain’s supporters raised from 45% to 48% during the end of April to the beginning of May, the number’s of Obama’s supporters declined to 42% from 45%. When Obama’s rate raises to 52% from 46 %, McCain’s rate goes down to 42% from 46% from the beginning of October to current. http://elections.nytimes.com/2008/president/whos-ahead/polling/index.html