Предмет: Алгебра, автор: LizaKanka

Конкурс исполнителей длится 4 дня. Всего заявлено 40 выступлений — по одному от каждой страны. В первый день запланировано 16 выступлений, остальные распределены поровну между оставшимися днями. Порядок выступлений определяется жеребьёвкой. Найдите вероятность того, что выступление представителя России состоится в третий день конкурса.

Ответы

Автор ответа: Glebtor

40-16= 24- оставшиеся выступления на 3 дня.
24:3=8 - по 8 участников в день
1:8=0,125 - вероятность выступления в 3 день

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