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Statistics & DataResearch

Margin of Error Calculator

Inputs

As a decimal. Use 0.5 for the widest, most cautious margin.

As a decimal, for example 0.95 for 95%.

Only needed when your sample is a large share of the whole group.

Results

Enter values and calculate to see results.

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Disclaimer: This calculator provides mathematical estimates based on the information you enter. It is intended for educational and informational purposes only and does not constitute professional advice. Consult a qualified professional before making financial, legal, medical or commercial decisions.