https://doi.org/10.1351/goldbook.A00440
The sum of a series of observations divided by the number of observations. Symbol: x¯. It can be calculated by the formula: x¯=xin
Note:
All summations are taken from 1 to n. Note that the arithmetic mean is an unbiased estimate of the population mean, i.e. μ is the limiting value for x¯, as n.
Source:
PAC, 1994, 66, 595. (Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)) on page 599 [Terms] [Paper]