# Normal distribution functions

## PDFNormal(x,mean,sd)

PDFNormal(x,mean,sd) returns the probability density at the value x of the normal distribution with given mean and standard deviation sd.

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## Graph

## CDFNormal(x,mean,sd)

CDFNormal(x,mean,sd) returns the value at x of the normal cumulative distribution with given mean and standard deviation sd.

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## Graph

## RndNormal(mean,sd)

RndNormal(mean,sd) returns a random number from the normal distribution with given mean and standard deviation sd