Предмет: Математика, автор: Intellsky

Теория вероятности. Объясните как решать, почему так?

Приложения:

Ответы

Автор ответа: TatoBadzgaradze

Ответ: 0.384

Решение: применяя формулу бернулли получаем что вероятность попасть 2 раза равно 3C2(из 3 по 2)×0.8^2×0.2=0.384. 0.8×0.8×0.2 это всего лишь шанс на любой нужный результат, однако таких результатов всего 3C2 т.е 3 штуки, поэтому и получается так.

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