The MEAN function returns a numeric value that is the arithmetic mean (average) of its arguments. The type of this function is numeric. 
 
  General Format
 
	  
	  
 
  Arguments
 
	   
	 - Argument-1 must be class numeric. 
	 
Returned Values
 
	   
	 - The returned value is the arithmetic mean of the argument-1 series. 
	 
- The returned value is defined as the sum of the argument-1 series divided by the number of occurrences referenced by argument-1. 
	 
- Floating-point format is used for numeric non-integer results.