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