Manuals/calci/NORMINV

NORMINV (Probability,Mean,StandardDeviation)

• $Probability$ is the probability corresponding to the Normal Distribution.
• $Mean$ is the Mean value.
• $StandardDeviation$ is the Standard Deviation.

Description

• This function gives the inverse of the Normal Cumulative Distribution for the particular Mean and Standard Deviation.
• If $NORMDIST(Number,Mean,StandardDeviation,Cumulative,accuracy)=Probability$, then $NORMINV(Probability,Mean,StandardDeviation)=Number$.
• $NORMINV$ using the iterating method to find the value of a Number.
• Suppose the iteration has not converged after 100 searches, then the function gives the error result.
• In $NORMINV(Probability,Mean,StandardDeviation)$, where $Probability$ is the corresponding probability of the Normal Distribution, $Mean$ is the Arithmetic Mean of the Normal Distribution and $StandardDeviation$ is the Standard Deviation of the Normal Distribution.
• This function will return the result as error when

1.any one of the argument is non-numeric
2.Suppose $Probability<0$ or $Probability>1$
3.$StandardDeviation<=0$.

• If $Mean=0$ and $StandardDeviation=1$, NORMINV uses the Standard Normal Distribution.

Examples

1. =NORMINV(0.01884908749,17.4,3.2) = 10.750011
2. =NORMINV(0.998742,5.4,2.3) = 12.349244172
3. =NORMINV(1,7.2,2.3) = NULL

Related Videos

NORMDIST AND NORMINV

See Also

• NORMDIST
• NORMSDIST
• NORMSINV

References

Normal distribution

• List of Main Z Functions

• Z3 home