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Confidence interval

When estimating something about a population, the confidence interval is the range of values within which we are confident the “right” answer falls. For example, “Based on our survey, the average program participant was 25 years old, and we are fairly sure the right answer is 20-30 years old.” This is sometimes called the margin of error, and it represents the amount of uncertainty in an estimate.

 

For more detail, see: confidence level

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