Предмет: Математика, автор: kanayaknur

В шахматной команде факультета 12 человек, из них 7 человек первого класса. Случайным образом были выбраны пять членов команды. Найдите количество тестов, подходящих для наступления события A - три из выбранных членов относятся к первому порядку.

Ответы

Автор ответа: batyzzz

15
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