Variance Calculator
Calculate Population Variance or Sample Variance
from a set of numbers.
Separate numbers using commas, spaces, semicolons, or new lines.
Variance
0
Number of Values
0
Mean
0
Sum of Squared Deviations
0
Data Values
Squared Deviations
Formula
Step-by-Step Calculation
Example
Data: 2, 4, 4, 4, 5, 5, 7, 9
Mean = 40 ÷ 8 = 5
Sum of squared deviations = 32
Population Variance = 32 ÷ 8 = 4
Sample Variance = 32 ÷ 7 ≈ 4.5714