Предмет: Алгебра, автор: solbrine2

Теория вероятности,пожалуйста подробно.

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Ответы

Автор ответа: xyzt

Полный набор домино- 28 штук.
Сумма 6 на четырех из них: 0-6,1-5, 2-4, 3-3.
Вероятность: р=4/28=1/7

После того, как вынули три шара, в урне осталось 13 шаров, из них 7 белых.
Вероятность: р=7/13

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