degree of freedom

Noun
  1. (statistics) an unrestricted variable in a frequency distribution (synset 105867135)
    referred to in: statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
    is a type of: variable, variable quantity - a quantity that can assume any of a set of values
  2. One of the minimum number of parameters needed to describe the state of a physical system (synset 105868061)
    is a type of: parameter, parametric quantity - a constant in the equation of a curve that can be varied to yield a family of similar curves

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