Standard Error of the Proportion Calculator

The standard error of a sample proportion can be calculated as:
Standard error = √p(1-p) / n
where:
  • p is the proportion of successes
  • n is the sample size
To find the standard error of a sample proportion, simply enter the necessary values below and then click the “Calculate” button.

Standard error = √p(1-p) / n

Standard error = √2(1-2) / 22 = 3.43435

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