Размах варьирования равен 12 для вариационного ряда …• 1, 3, 4, 6, 8, 9, 11, 13• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12• 2, 4. 6. 9, 12, 14, 15, 17, 18• 8, 9, 9, 12, 12, 12, 13, 14, 15, 16, 17, 19