Degrees of freedom

{
  "id": "MLC-T-CHM-002956",
  "term": "Degrees of freedom",
  "field": "Chemistry",
  "definition": "The number of independent values or quantities that are free to vary in a statistical calculation or a physical system. In statistics, it relates to the number of independent pieces of information available to estimate a parameter or calculate a statistic. For a sample of 'n' observations, the degrees of freedom for the sample variance is typically n-1.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "replication"
  ],
  "references": [
    "PAC, 1994, 66, 595. 'Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)' on page 599 (https://doi.org/10.1351/pac199466030595)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/degrees-of-freedom/"
}