degree of freedom

Noun	1.	degree of freedom - (statistics) an unrestricted variable in a frequency distribution variable quantity, variable - a quantity that can assume any of a set of values 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
	2.	degree of freedom - one of the minimum number of parameters needed to describe the state of a physical system 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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