Standard Deviation (3 Numbers)
Compute the sample standard deviation for three data points.
Educational information, not professional advice.
Examples
- 10,12,15 ⇒ 2.52
 - 5,5,5 ⇒ 0
 
FAQ
Why divide by 2?
n-1 for sample deviation.
More numbers?
This tool uses three inputs.
Additional Information
- a: Value A
 - b: Value B
 - c: Value C