Respuesta :
					                   Add them all up and decide by how many there are so it is 40
47+45+42+40+42+39+40+38+25+38+36+39+40+42+47+40=640/16=40
					                
					             47+45+42+40+42+39+40+38+25+38+36+39+40+42+47+40=640/16=40
					                   The range is the difference between the highest and lowest number. 
					                
					                
					              
			                   
					                  