Variância Populacional
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The population variance calculator is a useful tool for statisticians and researchers who need to calculate the population variance of a data distribution. It uses the formula σ² = Σ(x−μ)²/N to calculate the variance, where x is each individual value in the sample, μ is the sample mean and N is the number of observations.
This calculator is especially useful when you need to calculate the population variance of a small sample or when you do not have access to the entire population. In addition, it is an essential tool in sampling studies and data analysis.
It's worth noting that the population variance is a measure of the spread of the data around the population mean. It is a powerful tool to understand the distribution of the data and make predictions about the behavior of a population.
Here you can calculate the population variance of a sample, providing only three values: the sample mean and two individual values. The calculator will do the rest!
Frequently asked questions
What is the population variance?
The population variance is a measure of the spread of the data around the population mean. It is a powerful tool to understand the distribution of the data and make predictions about the behavior of a population.
When should I use this calculator?
Use this calculator when you need to calculate the population variance of a small sample or when you do not have access to the entire population.
How does this calculator work?
This calculator uses the formula σ² = Σ(x−μ)²/N to calculate the variance, where x is each individual value in the sample, μ is the sample mean and N is the number of observations.
What is the sample mean?
The sample mean is the average value of the sample data. It is calculated by summing all the values and dividing by the number of observations.
Can I calculate the population variance of a large sample?
No, this calculator is designed to calculate the population variance of small samples. For large samples, it is recommended to use more advanced statistical methods.