Предмет: Алгебра, автор: Arrrani

ЗАДАЧА НА ВЕРОЯТНОСТЬ
ХЕЛП !

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Ответы

Автор ответа: RealFedotSoldier

Допустим у нас сто человек. Тогда десять из них добились успеха, плюс еще 8 начали заново и 90/100 от этих восьми добились успеха. То есть 10% плюс еще 90% добились успеха от 8% которые начали заново от тех 90%, которые провалились в первый раз(так как добились успеха в первый раз всего 10%, значит остальные фукнулись)

Arrrani: в итоге ответ ?

RealFedotSoldier: Сам думай. Я дал путь к решению, вы решайте

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