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Variance Calculator

Calculate variance, standard deviation, and coefficient of variation at once. View both population and sample results simultaneously.

Data Input

Supports comma, space, or newline separated values

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How to Use

Step 1

Enter Data

Enter Data

Enter numerical data separated by commas or newlines

Step 2

Select Type

Select Type

Select population variance or sample variance

Step 3

Check Results

Check Results

Check calculated variance, standard deviation, and coefficient of variation

Features

Population & Sample Variance

Calculate both population variance (÷N) and sample variance (÷N-1)

Related Statistics

Calculate and display mean, variance, SD, CV, and range at once

Calculation Steps

Display calculation steps including deviations and squared deviations

FAQ

Standard deviation is the square root of variance. It's in the same units as the data, making it more intuitive to interpret.