Geometric Mean - short version

The geometric mean of n numbers {x1, x2, x3, . . . , Xn} is the nth root of their product:

Geometric Mean - long version

The geometric mean, in mathematics, is a type of mean or average, which indicates the central tendency or typical value of a set of numbers. It is similar to the arithmetic mean, except that the numbers are multiplied and then the nth root (where n is the count of numbers in the set) of the resulting product is taken.

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