Statistics Calculator

Standard deviation, variance, and more

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Formula Used

Variance = Σ(x − mean)² / n
Standard Deviation = √Variance
Sample Std Dev uses (n − 1) in the denominator.

Step-by-Step Explanation

  1. 1Enter your data set, separated by commas or spaces.
  2. 2See the mean, variance, and both population and sample standard deviation.

Worked Examples

Example 1

Data set: 4, 8, 15, 16, 23, 42

6 values

Mean = 18, population std dev ≈ 12.06

Frequently Asked Questions

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