Mathematics, 29.07.2021 15:50 strodersage
Có 30 tấm thẻ đánh số từ 1 đến 30. Chọn ngẫu nhiên ra 10 tấm thẻ. Tìm xác suất có đúng 5 tấm mang số chia hết cho 3.
Answers: 1
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Có 30 tấm thẻ đánh số từ 1 đến 30. Chọn ngẫu nhiên ra 10 tấm thẻ. Tìm xác suất có đúng 5 tấm mang số...
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