Introduction to the Margin of Error

A detailed tutorial on the margin of error. Step by step tutorial including several examples of the margin of error for reference.

The margin of error is a statistic that expresses the amount of possible random sampling errors that could end up in the result of a survey. The bigger the margin of error, the less trustworthy the survey is, because it means that everything falling within the margin of error could possibly be wrong and not accurate. However, if the margin or error is small, then the survey should be very accurate.

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