Предмет: Алгебра, автор: nekitake11

Із 30 екзаменаційних білетів учень не
вивчив два. Яка ймовірність того, що саме цей
білет він витягне на екзамені?

Ответы

Автор ответа: sergyzak2020bor
4

Ответ:

= 2/30 = 1/15

Объяснение:

всех событий 30.

неблагоприятных 2

вероятность неблагоприятного = 2/30

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