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When You Hear the Margin of Error Is Plus or Minus 3 Percent, Think 7 Instead

There are many ways, besides the well-known sampling error, to get things wrong in polling.
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An Early Edge

Politics / US Politics : The Page

AP-GfK poll finds Obama favored among registered voters nationwide: Obama 50 - Romney 42 Poll conducted May 3-7, by GfK Roper Public Affairs and Corporate Communications with a margin of sampling error of plus or minus 3.9 percentag...

First Slice 5/2/14: Deal leads Carter by slim margin in latest poll

United States / Atlanta : Fresh Loaf

Gov. Nathan Deal currently leads State Sen. Jason Carter by a margin of 41 to 37 percent with a margin of error of plus or minus 2.5 percent, according to a recent poll by 11Alive and SurveyUSA The city of Atlanta has joined with Fr...

Hillary Clinton Holds Eight-Point Edge Over Bernie Sanders in Massachusetts

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The poll of 500 people, with a margin of sampling error of plus or minus four percentage points, showed Mrs. Clinton with 50 percent of likely voters, while Mr. Sanders had 42 percent.

Battleground Data

Politics / US Politics : The Page

Fox News Poll: Florida: Obama 45 - Romney 43 Conducted April 15 to April 17, 2012 with a margin of sampling error of plus or minus 4 percentage points. Ohio Obama 45 - Romney 39 Conducted April 15 to 17, and had a margin of sampling...

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