Statistics & Probability
Intermediate

Geometric Mean

The nth root of the product of n values.

Formula

GM=x1x2⋯xnnGM = \sqrt[n]{x_1 x_2 \cdots x_n}

Variables

x_iData values
nCount

Example

The geometric mean of 2 and 8 is √(2·8) = 4.

Did You Know?

The geometric mean is the right average for growth rates and ratios — use it for compounding returns.

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