Вероятность отказа одного или двух элементов:<img src="/close/store/examRes/%7BD2ACC2C4-52A9-4769-850A-0C83370456F3%7D/21.bmp" /><img src="/close/store/examRes/%7BD2ACC2C4-52A9-4769-850A-0C83370456F3%7D/23.bmp" /><img src="/close/store/examRes/%7BD2ACC2C4-52A9-4769-850A-0C83370456F3%7D/24.bmp" /><img src="/close/store/examRes/%7BD2ACC2C4-52A9-4769-850A-0C83370456F3%7D/22.bmp" /> <img src="/img/45/5ab3a8b6149a5421a1b2c96444.bmp" />, <img src="/img/2a/6041d11a7135c2ae68b6efe0ba.bmp" />, <img src="/img/c4/0a1022d325e28f9fc2e882bbe5.bmp" />, <img src="/img/3f/4fa7824e5649b991dcc8729ef3.bmp" />