In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed.

What is a lognormal distribution? A lognormal distribution is one where the logarithm of the variable of interest is normally distributed. Consequently, the lognormal variable itself is strictly …

May 21, 2025 · As a data practitioner, you’ll often encounter data that looks almost normal but has a stubborn right tail that stretches way out. Stock prices, web session times, income …

What is the Lognormal Distribution? The lognormal distribution is a continuous probability distribution that models right-skewed data. The unimodal shape of the lognormal distribution is …

Feb 16, 2022 · The log-normal distribution is a right skewed continuous probability distribution, meaning it has a long tail towards the right. It is used for modelling various natural phenomena …

Aug 23, 2025 · What Is a Log-Normal Distribution? A log-normal distribution represents a set of data that follows a normal distribution when logarithms are applied to its values.

The log-normal distribution is the probability distribution of a random variable whose logarithm follows a normal distribution. It models phenomena whose relative growth rate is independent …

In other words, the exponential of a normal random variable has a log-normal distribution. Log-normal random variables are characterized as follows. Definition Let be a continuous random …

The lognormal distribution is used extensively in reliability applications to model failure times. The lognormal and Weibull distributions are probably the most commonly used distributions in …

3 days ago · A log normal distribution results if the variable is the product of a large number of independent, identically-distributed variables in the same way that a normal distribution results …