Lognormal Distribution

Before reading this article, make sure that you have read the article on probability distributions in general. Suppose that X is a normally distributed random variable with a mean of μ and a variance of σ2 (\(X\ \sim\ N\left(\mu,\ \sigma^2\right)\)).  Then the random variable \(Y\ =\ e^X\) has what is known as a lognormal distribution.  […]