The VARIANCE function returns a numeric value that approximates the variance of its arguments. The type of this function is
                  numeric. 
                  		
               
 
               	 
              
            	 
            
               Usage
 
               		 
               		FUNCTION VARIANCE ({argument-1} ... ) 
               	   
            	 
            
               Parameters
 
               		 
               		
                
                  		
                  
                      
                        			  
                        			  
                        			 
                         
                           				
                            
                              				  
                              |  
                                 					 argument-1 
                                 				  
                               |  
                              				  
                              Must be class numeric. 
                                 				  
                               |  
                              				
                           
 
                           			 
                         
                        		  
                     
                    
                  		
                 
               	 
              
            	 
            
               Returned Value
 
               		
               		
               
                  		  
                  - The returned value is the approximation of the variance of the 
                     			 argument-1 series. 
                     		  
                  
 
                  		  
                  - The returned value is defined as the square of the standard deviation of the 
                     			 argument-1 series. 
                     		  
                  
 
                  		  
                  - If the 
                     			 argument-1 series consists of only one value, or if the 
                     			 argument-1 series consists of all variable occurrence data items and the total number of occurrences for all of them is one, the returned
                     value is zero.