Variance Calculator
Math CalculatorsFind the variance of a sample or population.
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Sample Var
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Population Var
About This Tool
Easy-to-use variance calculator for statisticians and students. Get instant results for both sample and population variance.
Frequently Asked Questions
Variance is the expectation of the squared deviation of a random variable from its mean. It measures how far numbers are spread out.
Variance is the average of the squared differences from the mean, while standard deviation is the square root of the variance.
Sample variance is used when you are estimating the variance of a larger population based on a smaller sample group.
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