# Geometric mean

The geometric mean is a number, which is used to represent a set of numbers. It is calculated by taking the n-th root of the product of these numbers. In symbols, if we have ${\displaystyle N}$ numbers ${\displaystyle X_{1},X_{2},X,3\dots X_{N}}$, the geometric mean is
${\displaystyle {\sqrt[{N}]{X_{1}\cdot X_{2}\cdot X_{3}\cdot \dots X_{N}}}}$