Standard deviation

sigma=sqrtfracSSn\\sigma=\\sqrt{\\frac{SS}{n}}

What it does

Calculates standard deviation from the supplied values.

When to use it

Use this statistics formula when the named quantities are known.

Variables

Worked example
{
  "inputs": {
    "count": 2,
    "sumSquaredDeviations": 50
  },
  "result": 5
}
Common mistakes
Check units, signs, brackets and that every value is entered in the stated units.