Предмет: Математика, автор: nastyakot11

В пачке 12 тетрадей . Среди этих тетрадей 3 в клетку, остальные в линейку . Какова вероятность того, что на удачу выбранная тетрадь окажется в клетку?

Ответы

Автор ответа: Oleg07KBR

1)количество в клетку:12-3=9
2)вероятность:3/9=0.3

Автор ответа: Аноним

1)2-3=9
2)3:9=0.3-вероятность

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