Arithmetic average is the arithmetic average of all data, and it is also the mean, and the symbol is m (mean). Arithmetic average is the main measure of concentration trend.

Geometric mean refers to the nth root of the product of n observations.

The average value refers to the sum of all data in a set of data divided by the number of data. The average value is a quantity representing the trend of a set of data sets and an index reflecting the trend of data sets.