Mathematics, 16.06.2021 14:00 animaljamissofab

Từ một nhóm kĩ sư 10 người gồm 6 kĩ sư hóa và 4 kĩ sư điện chọn ngẫu nhiên 4 kĩ sư tính xác xuất để trong 4 người được chọn có 2 kĩ sư điện

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Từ một nhóm kĩ sư 10 người gồm 6 kĩ sư hóa và 4 kĩ sư điện chọn ngẫu nhiên 4 kĩ sư tính xác xuất để...

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