Statistics Calculator
Standard deviation, variance, and more
Formula Used
Variance = Σ(x − mean)² / n Standard Deviation = √Variance Sample Std Dev uses (n − 1) in the denominator.
Step-by-Step Explanation
- 1Enter your data set, separated by commas or spaces.
- 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