Pooled Standard Deviation Calculator.

Calculate equal-variance pooled standard deviation for two samples.

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Set your values

Results update as you type.

02 / ANSWER

First sample SD (s₁)

First sample size (n₁)

Second sample SD (s₂)

Second sample size (n₂)

pooledStandardDeviation

0.000000

degreesOfFreedom

0.000000

Uses the unbiased pooled estimator with two entered sample SDs and sample sizes n₁,n₂ ≥ 2; equal-variance suitability is not tested.

Results update automatically as you type.

FAQs

What statistical contract is used?

Calculate equal-variance pooled standard deviation for two samples. The page states its exact formula and does not infer a distribution, p-value, or suitability claim.

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