Pooled Standard Deviation
Calculator
Pooled standard deviation
2.986636
Results
- Pooled standard deviation
- 2.986636
Statistical results
| Pooled standard deviation | 2.986636 |
formula-map diagram
- Pooled standard deviation
- 2.986636
Statistical relationship
Formula
sp = √[((n₁−1)s₁² + (n₂−1)s₂²) / (n₁ + n₂ − 2)]= 2.9866369046136
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.