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