public function average(){
		Number::setScale(static::NUMERIC_FUNCTIONS_SCALE);
		return Number::divide($this->sum(), \strval($this->count()));
	}
public function average(){
		Number::setScale(static::NUMERIC_FUNCTIONS_SCALE);
		return Number::divide($this->sum(), \strval($this->count()));
	}
public function average ( ) { Number :: setScale ( static :: NUMERIC_FUNCTIONS_SCALE ) ; return Number :: divide ( $ this -> sum ( ) , \ strval ( $ this -> count ( ) ) ) ; }
Computes the average value for a list of numbers
@return string
Computes the average value for a list of numbers