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Sample Variance Calculator

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About Sample Variance Calculator

The Sample Variance Calculator is used to calculate the sample variance of a set of numbers.

FAQ

The sample variance, s², is used to calculate how varied a sample is. In statistics, a data sample is a set of data collected from a population. Typically, the population is very large, making a complete enumeration of all the values in the population impossible. The solution is to take a sample of the population with manageable size, say 5,000, and use that sample to calculate statistics.

The sample variance is calculated by following formula:

Sample Variance Formula

Where:
s2 = sample variance
x1, ..., xN = the sample data set
x̄ = mean value of the sample data set
N = size of the sample data set

We ever tested 50k numbers. The Sample Variance Calculator can get the results instantly.

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