# Margin of Error

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Published on October 27, 2008

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## Related pages

### Margin of error - Wikipedia, the free encyclopedia

Explanation. The margin of error is usually defined as the "radius" (or half the width) of a confidence interval for a particular statistic from a survey.

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Typically poll results are accompanied by a margin of error. How does is this margin of error calculated? It's really just a statement of the sample size ...

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This lesson defines the margin of error and describes step-by-step how to compute the margin of error. Includes sample problem with solution.

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Sample Size and the Margin of Error. Margin of error – the plus or minus 3 percentage points in the above example – decreases as the sample size ...

### Margin of Error -- from Wolfram MathWorld

The margin of error is an estimate of a confidence interval for a given measurement, result, etc. and is frequently cited in statistics. While phrases such ...

### Margin of Error Calculator - American Research Group

Margin of Error Calculator. Enter a population size and a sample size to calculate the theoretical margin of error, plus or minus in percentage points, ...

### Margin of Error Calculator - SurveyMonkey: Free online ...

Calculate the right sample size with our simple sample size calculator. And if you need more survey responses, we make it easy.