What is LOGNORM.INV function in Excel?
Syntax of LOGNORM.INV function
LOGNORM.INV(probability, mean, standard_dev)
The LOGNORM.INV function syntax has the following arguments:
- Probability Required. A probability associated with the lognormal distribution.
- Mean Required. The mean of ln(x).
- Standard_dev Required. The standard deviation of ln(x).
LOGNORM.INV formula explanation
- If any argument is nonnumeric, LOGNORM.INV returns the #VALUE! error value.
- If probability <= 0 or probability >= 1, LOGNORM.INV returns the #NUM! error value.
- If standard_dev <= 0, LOGNORM.INV returns the #NUM! error value.
Example of LOGNORM.INV function
Steps to follow:
1. Open a new Excel worksheet.
2. Copy data in the following table below and paste it in cell A1
Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.
You can adjust the column widths to see all the data, if need be.
| Data | Description | |
| 0.039084 | Probability associated with the lognormal distribution | |
| 3.5 | Mean of ln(x) | |
| 1.2 | Standard deviation of ln(x) | |
| Formula | Description | Result |
| =LOGNORM.INV(A2, A3, A4) | Inverse of the lognormal cumulative distribution function for the terms above | 4.0000252 |