# Margin of error facts for kids

The **margin of error** is a way to measure the sampling error in the results of a statistical survey. A bigger margin of error means that the results are less certain. Margins of error occur when a population is incompletely sampled. Usually, the margin of error is defined as the radius (half the width) of a confidence interval for a given sample.

## See also

In Spanish: Margen de error para niños

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Margin of error Facts for Kids. *Kiddle Encyclopedia.*