+The **cumulative distribution function (CDF)** describes the probability that a [random variable](/wiki/Random_Variable) takes on a value less than or equal to a given point. It offers a complete picture of a variable's [probability distribution](/wiki/Probability_Distribution), showing how probabilities accumulate across its range.
+## See also
+- [Probability](/wiki/Probability)
+- [Statistics](/wiki/Statistics)
+- [PDF](/wiki/PDF)
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