Standard Deviation (3 Numbers)

Compute the sample standard deviation for three data points.

Value A
Value B
Value C

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