Online sampling statistics calculators to easily calculate mean, standard deviation and variance of sample and population. Sampling in statistics is the selection of a subset of individuals within a statistical population to estimate characteristics of the whole population. Mean is the average of all the data in a set divided by the total number of data in a set. Variance is the average squared deviation of each number from its mean. The standard deviation is the square root of variance.

- Population Confidence Interval
- Population Mean Calculator
- Population Variance Calculator
- Range Rule of Thumb Calculator
- Required Sample Size Calculator
- Sample Population Variance Calculator
- Sample Size Calculator
- Sample Size Calculator to Estimate Population Proportion
- Sample Standard Deviation Calculator

Sampling is done because, examining each individual population for a specific criteria becomes more tedious and takes lot of time and resources. With sampling statistics it becomes much easier to research and obtain reliable and accurate results. Listed here are few sampling statistics calculator for easy calculation of mean, standard deviation and variance of given sample, population.