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.