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NormInv - script and chart function

NormInv() returns the inverse of the normal cumulative distribution for the specified mean and standard deviation.


NormInv(prob, mean, standard_dev)

Return data type: number


NORMINV arguments
Argument Description
prob A probability associated with the normal distribution. It must be a number between 0 and 1.
mean A value stating the arithmetic mean for the distribution.
standard_dev A positive value stating the standard deviation of the distribution.

This function is related to the NormDist function in the following way:
If prob = NormDist(value, m, sd), then NormInv(prob, m, sd) = value


All arguments must be numeric, else NULL will be returned.

Examples and results:  

Examples and results
Example Result
NormInv( 0.6914625, 0, 1 ) Returns 0.5000  

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