Statistical - GEOMEAN Function

Description

The GEOMEAN function returns the geometric mean of an array or range of positive data.

GEOMEAN (number1, [number2] ...)

Argument	Description	Required/ Optional
number1	1 to 255 arguments for which you want to calculate the mean.	Required
number2, ...	You can also use a single array or a reference to an array instead of arguments separated by commas.	Optional

The equation for the geometric mean is −

$$GM_{\bar{y}}=\sqrt[n]{y_1 y_2y_3.....y_n}$$
Arguments can either be numbers or names, arrays, or references that contain numbers.
Logical values and text representations of numbers that you type directly into the list of arguments are counted.
If an array or reference argument contains text, logical values, or empty cells, those values are ignored; however, cells with the value zero are included.
If any of the specified values cannot be interpreted as numeric values, GEOMEAN returns the #VALUE! error value.
If any data point ≤ 0, GEOMEAN returns the #NUM! error value.

Excel 2007, Excel 2010, Excel 2013, Excel 2016

advanced_excel_statistical_functions.htm