# InverseLogNormal Command

From GeoGebra Manual

Revision as of 12:45, 24 July 2015 by Markus.winkler (talk | contribs)

- InverseLogNormal[ <Mean>, <Standard Deviation>, <Probability> ]
- Computes the inverse of cumulative distribution function of the log-normal distribution at probability
*p*, where the log-normal distribution is given by mean*μ*and standard devation*σ*. - In other words, it finds
*t*such that*P(X ≤ t) = p*, where*X*is a log-normal random variable. - Probability
*p*must be from [*0, 1*]. **Examples:**`InverseLogNormal[10, 20, 1/3]`

computes*3.997*.`InverseLogNormal[1000, 2, 1]`

computes \infty .