Критерий Кохрена находится по формуле:<img src="/close/store/examRes/%7B27958B55-A586-4DB2-B7FB-45BE8414E83B%7D/17_4.png" /><img src="/close/store/examRes/%7B27958B55-A586-4DB2-B7FB-45BE8414E83B%7D/17_1.png" /><img src="/close/store/examRes/%7B27958B55-A586-4DB2-B7FB-45BE8414E83B%7D/17_3.png" /><img src="/close/store/examRes/%7B27958B55-A586-4DB2-B7FB-45BE8414E83B%7D/17_2.png" /> <img src="/img/9b/ba3291985ebd0d88bf47363692.png" />, <img src="/img/a3/8fd09252f0eb28797291819c8c.png" />, <img src="/img/79/6c18bf30f90ecdf4fb9d4de749.png" />, <img src="/img/4f/c0a76889c3dffc45a1f2e59821.png" />