Cumulative distribution function
Cumulative distribution function
!Cumulative distribution function for the [exponential distribution](//upload.wikimedia.org/wikipedia/commons/thumb/8/80/Exponentialdistributioncdf.svg/330px-Exponentialdistributioncdf.svg.png)
Cumulative distribution function
!Cumulative distribution function for the [normal distribution](//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/NormalDistributionCDF.svg/330px-NormalDistributionCDF.svg.png)
Cumulative distribution function
In probability theory and statistics, the cumulative distribution function (CDF) of a real-valued random variable ${\displaystyle X}$, or just distribution function of ${\displaystyle X}$, evaluated at ${\displaystyle x}$, is the probability that ${\displaystyle X}$ will take a value less than or equal to ${\displaystyle x}$.
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