# Geometric Mean

The geometric mean of a set of *n* numbers is the value obtained by taking the *n*th root of their product.

Geometric mean is a high school-level concept that would be first encountered in an algebra course.

### Prerequisites

Mean: | In statistics, a mean is quantity corresponding to one of possibly several different definitions of the "average" of a set of values, such as the arithmetic, geometric, or harmonic mean. In the absence of additional context, the term "mean" most commnly refers to the arithmetic mean (i.e., the average). |