Sample Variance Stddev
Calculator
Sample mean
10
Results
- Sample mean
- 10
- Sample variance (n−1)
- 12.5
- Sample standard deviation (n−1)
- 3.535533
Statistical results
| Sample mean | 10 |
| Sample variance (n−1) | 12.5 |
| Sample standard deviation (n−1) | 3.535533 |
formula-map diagram
- Sample mean
- 10
- Sample variance (n−1)
- 12.5
- Sample standard deviation (n−1)
- 3.535533
Statistical relationship
Formula
x̄ = Σx/n, s² = (Σx² − n·x̄²) / (n − 1), s = √s²= 10
Note
This is a simplified model: it applies the displayed standard formula to the summary values you entered and assumes their underlying conditions (independence, normality, correct sampling) hold. It does not analyse a real data set. Check the assumptions before relying on the result.