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EXCEL NORMINV FUNCTION
Excel NORMINV Function Introduction
The NORMINV function in Excel generates the inversion of the Cumulative Normal Density Function for a given x value and a given distribution mean and standard deviation.
Description of Excel NORMINV Function
Syntax :
=NORMINV( probability, mean, standard_dev )
Parameters :
- The following parameter are:
Probability –
- The value where the inverse function should be evaluated.
mean –
- The distribution’s arithmetic mean.
standard dev –
- The project’s standard deviation.
Step By Step Guide of NORMINV Function
Example :
The Inverse Normal Cumulative Density Function with a Mean of 5 and a Standard Deviation of 2 is seen on the right.
If you wish to determine the value of this function when the probability is equal to 0.6, use the Excel Norminv function, as shown below.
=NORMINV( 0.6, 5, 2 )
This gives the result 5.506694206.
Key Points
- #NUM! – Occurs when either the specified probability argument is 0 or more than 1, or the supplied standard dev parameter is 0.
- #VALUE! – This error occurs if any of the supplied parameters is not a number.
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