Mathematics, 14.06.2021 18:40 Dracopaul03

một nhóm có 6 người với 6 tên khác nhau. mỗi người viết tên một người khác trong nhóm một cách ngẫu nhiên. tính xác suất để có 2 người trong nhóm viết tên của nhau

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một nhóm có 6 người với 6 tên khác nhau. mỗi người viết tên một người khác trong nhóm một cách ngẫu...

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