Population Variance Calculator

Your details

Choose population when your values represent the entire group. Choose sample when they are a subset drawn from a larger population.
Enter numbers separated by commas or spaces. Up to 20 values.
VarianceModerate spread
18.64

Population variance (sigma squared) or sample variance (s squared)

Standard Deviation4.3174
Mean5.4
Count (N)5
Sum of Squares93.2
Sum27
Minimum1
Maximum13
Range12
Variance18.64
Sum of Squares93.2
Std Dev4.3174

Population variance: 18.64

  • Your population has 5 values with a mean of 5.4.
  • The standard deviation is 4.3174, meaning a typical value sits about 4.32 units away from the mean.
  • The coefficient of variation is 80.0%, which is the relative spread as a percentage of the mean.

Next stepFor normally distributed data, about 68% of values fall within one standard deviation of the mean and 95% within two. Check whether your data is approximately normal before relying on those rules.

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