{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "Used to describe the quotient of two c2 random variables. The F-distribution has two parameters n1 and n2, which are the numbers of degrees of freedom of the numerator and denominator variable respectively. The relationship to mean m and variance s2 are: m = n2 / (n2 - 2) and s2 = (2 n2 (n2 + n1 - 2)) / (n1 (n2 - 2)2 (n2 - 4)).",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ProbabilityDistributionType",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "active"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "10755"
  } ],
  "codesystem" : "f91b22ed-f019-5e03-996b-49847f05d83f",
  "concept_id" : "e552fe86-51ec-507b-bf01-ffffc12f5485",
  "ancestors" : {
    "F" : 0
  },
  "id" : "73ca9d9f-12ad-4661-9b86-c833f67ba25e",
  "code" : "F",
  "display" : "F",
  "version" : "3.0.0"
}