• PollingDownload .TXT file Open in Data Desk ?Link
  • Methods: Comparing Two Groups, Correlation, Regression
  • Source: Polling data from Gallup
  • Number of Cases: 14
  • Story:

    How accurate are pollsters in predicting the outcomes
    of Congressional elections? The table shows the actual
    number of Democrat seats in the House of Representatives
    and the number predicted by the Gallup organization for nonpresidential
    election years in the 4 decades following World War II.


The datafile is loading