Coefficient of variation API

Compute the coefficient of variation CV = sd/|mean| (and as a percentage) from raw data or summary stats, with a low/moderate/high dispersion rating, to compare relative variability across scales. Auditable: echoes mean and sd. Answers 'coefficient of variation','relative standard deviation','how variable is this data relative to its mean'.

Price$0.01per request

MethodPOST

Route/v1/calc/stat-coefficient-of-variation

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

calcstatisticscoefficient-of-variationcvdispersionrelative-sdvariabilitycompare

API URLhttps://x402.hexl.dev/v1/calc/stat-coefficient-of-variation

Integration docs

Example request

{
  "mean": 50,
  "sd": 5
}

Example response

{
  "coefficientOfVariation": 0.1,
  "cvPercent": 10,
  "mean": 50,
  "sd": 5,
  "n": null,
  "rating": "low dispersion",
  "interpretation": "CV = sd/|mean| = 10%."
}

Input schema

{
  "type": "object",
  "required": [],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "number"
      },
      "description": "raw data (>=2)"
    },
    "mean": {
      "type": "number",
      "examples": [
        50
      ]
    },
    "sd": {
      "type": "number",
      "examples": [
        5
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}