cumulative distribution function

cumulative distribution function
(cdf) a mathematical function that defines the probability distribution of a random variable by giving for each random variable X the probability of observing a value less than or equal to a specified value x.

Medical dictionary. 2011.

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  • Cumulative distribution function — for the normal distributions in the image below …   Wikipedia

  • cumulative distribution function — noun Date: 1950 a function that gives the probability that a random variable is less than or equal to the independent variable of the function …   New Collegiate Dictionary

  • cumulative distribution function — noun : a function that gives the probability that a random variable is less than or equal to the independent variable of the function …   Useful english dictionary

  • Cumulative density function — is a self contradictory phrase resulting from confusion between: probability density function, and cumulative distribution function. The two words cumulative and density contradict each other. This disambiguation page lists articles associated… …   Wikipedia

  • Distribution function — This article describes the distribution function as used in physics. You may be looking for the related mathematical concepts of cumulative distribution function or probability density function. In molecular kinetic theory in physics, a particle… …   Wikipedia

  • distribution function — noun Date: circa 1909 cumulative distribution function …   New Collegiate Dictionary

  • distribution function — cumulative distribution f …   Medical dictionary

  • Empirical distribution function — In statistics, an empirical distribution function is a cumulative probability distribution function that concentrates probability 1/ n at each of the n numbers in a sample.Let X 1,ldots,X n be iid random variables in mathbb{R} with the cdf F ( x… …   Wikipedia

  • Probability distribution function — Depending upon which text you consult, a probability distribution function is either: * a cumulative distribution function, or * a probability density function …   Wikipedia

  • Cumulative frequency analysis — is the applcation of estimation theory to exceedance probability (or equivalently to its complement). The complement, the non exceedance probability concerns the frequency of occurrence of values of a phenomenon staying below a reference value.… …   Wikipedia

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