Log-normal distribution

Definition

A continuous probability distribution whose logarithm is normally distributed. It is used in various scientific fields, including entomology, to model data that can be right-skewed and multiplicative in nature, such as the sizes of insect populations or growth rates.

Etymology

It combines the concepts of normal distribution and logarithmic transformation.

Example

The growth of a population over time can often be modeled using a log-normal distribution.

Related Terms

• Normal distribution
• Logarithm