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Pollster Report Card: All Pollsters x All 2008 Contests, Mean (Avg) Error, Through 05/06/08

SurveyUSA Breaking News - 104 days ago

41 pollsters have a released a public poll in the 7 days before one of the 2008 presidential primaries. Here is a high-level analysis of pollster performance, sorted from lowest Mean (Average) Error to highest (where lower is better, and zero is perfect).

A separate posting will be made with the same data sorted by Median Error.

(click on the chart until legible; all supporting detail follows on the jump).

HiLites Mean Error All Pollsters by All 2008 Contests Through 050608

Detailed view of the same data follows:

Detailed View Mean Error Pollster Report Card All Contests Through 050608xxx


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