What is VARA function in Excel? VARA function is one of Statistical functions in Microsoft Excel that estimates variance based on a sample. Syntax of VARA function VARA(value1, [value2], …) The VARA function syntax has the following arguments: Value1, value2, … Value1 is required, subsequent values are optional. 1 to 255 value arguments corresponding to a sample of a population. Explanation of VARA function VARA assumes…