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) |
