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The confidence interval radius determines the margin of error. If you want more information visit: http://en.wikipedia.org/wiki/Margin_of_error

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Q: What determines an election poll's margin of error?
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What is margin of error for the rasmussen polls?

The margin of error in the Rasmussen poll is +/- 3 in which the confidence becomes 95%. These reports surveys were conducted by Pulse Opinion Research LLC. lately in 26, december in the year of 2012.


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It is far too soon to even make a reasonable guess. Obama has seen his popularity slip, but no strong Republican candidate has appeared. The election is still more than a year away. As of mid-summer 2012, the contest is much closer, with Obama holding a few-points lead in opinion polls. Obama consistently comes out as the winner in these polls, but the margin of victory is now usually within the margin of error for the poll, which means that the election is likely a tossup. The prediction-market web site Intrade.com allows individuals to effectively bet on which candidate will win the election, and Obama is currently running at about a 56% chance to be reelected, with Mitt Romney running about 42% chance to be elected.


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What time do Indiana polls close on Election Day?

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