What is AVERAGEA function in Excel? AVERAGEA function is one of Statistical functions in Microsoft Excel that calculates the average (arithmetic mean) of the values in the list of arguments. Syntax of AVERAGEA function AVERAGEA(value1, [value2], …) The AVERAGEA function syntax has the following arguments: Value1, value2, … Value1 is required, subsequent values are optional. 1 to 255 cells, ranges of cells,…