NORMINV
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Returns the inverse of the normal cumulative distribution for the specified mean and standard deviation.
Syntax
NORMINV ( probability , mean , standard_dev )
Probability is a probability corresponding to the normal distribution.
Mean is the arithmetic mean of the distribution.
Standard_dev is the standard deviation of the distribution.
Remarks
If any argument is nonnumeric, NORMINV returns the #VALUE! error value.
If probability < 0 or if probability > 1, NORMINV returns the #NUM! error value.
If standard_dev 0, NORMINV returns the #NUM! error value.
If mean = 0 and standard_dev = 1, NORMINV uses the standard normal distribution (see NORMSINV).
NORMINV uses an iterative technique for calculating the function. Given a probability value, NORMINV iterates until the result is accurate to within 3x10^-7. If NORMINV does not converge after 100 iterations, the function returns the #N/A error value.
Example
Probability |
Mean |
StdDev |
Formula |
Description (Result) |
---|---|---|---|---|
0.908789 |
40 |
1.5 |
=NORMINV([Probability],[Mean],[StdDev]) |
Inverse of the normal cumulative distribution for the specified arguments (42) |