## Log Normal Distribution

Log-normal Distribution The continuous random variable $X$ has a log-normal distribution if the random variable $Y=\ln (X)$ has a normal distribution with mean $\mu$ and standard deviation $\sigma$. The probability density function of $X$ is \begin{aligned} f(x) & = \frac{1}{\sqrt{2\pi}\sigma x}e^{-\frac{1}{2\sigma^2}(\ln x -\mu)^2},x\geq 0 \end{aligned} In Log-normal distribution $\mu$ is called location parameter, …

## Log Normal Distribution Calculator With Examples

Log-normal distribution calculator Log-normal Distribution Calculator is used to find mean, variance and probabilities of various type of events for Log-normal distribution with parameter $\mu$ and $\sigma^2$. Log-Normal Probability Calculator First Parameter ($\mu$) Second parameter ($\sigma$) P(X< A) P(X > B) P(A< X &lt B) and Outside A and B and Calculate Results Mean : …