1.На карточках написаны буквы, образующие слово «комбинаторика», но две карточки из этого набора утеряны. Наудачу извлекается одна карточка. Какова вероятность того, что на ней окажется гласная буква? 2.Из полного шахматного набора 9 раз извлекается фигура, которая затем возвращается. Какова вероятность того, что при этом конь появится ровно три раза?

1.На карточках написаны буквы, образующие слово «комбинаторика», но две карточки из этого набора утеряны. Наудачу извлекается одна карточка. Какова вероятность того, что на ней окажется гласная буква?
2.Из полного шахматного набора 9 раз извлекается фигура, которая затем возвращается. Какова вероятность того, что при этом конь появится ровно три раза?
- Предмет:
  Алгебра
- Автор:
  layton
- 6 лет назад

Ответы 1

1)Всего букв - 13, а гласных букв - 6 => вероятность выпадения гласной буквы = 6/13
- Автор:
  koch
- 6 лет назад
- 0
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The United Kingdom is very small compared with many other countries in the world. However there are only nine other countries with more people, and London is the world's seventh biggest city. When you travel about the country you can see how the scenery changes right in front of your eyes. Highlands turn into lowlands, forests and hills turn into meadows and plains very quickly. It's hard to believe, but in Great Britain one can find practically any type of scenery. Often what people first notice about Britain, especially if they arrive by plane, is the green of the fields, hedges and trees. Britain is an unusually beautiful country!

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