
Разминка ОГЭ
Authored by Ирина Поляк
Mathematics
9th Grade
Used 1+ times

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5 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Фирма «Вспышка» изготавливает фонарики. Вероятность того, что случайно выбранный фонарик из партии бракованный, равна 0,03. Какова вероятность того, что два случайно выбранных из одной партии фонарика окажутся небракованными?
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Вероятность того, что новая шариковая ручка пишет плохо (или не пишет), равна 0,09. Покупатель в магазине выбирает одну такую ручку. Найдите вероятность того, что эта ручка пишет хорошо.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Для экзамена подготовили билеты с номерами от 1 до 50. Какова вероятность того, что наугад взятый учеником билет имеет однозначный номер?
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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