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Mathematics, 27.11.2021 07:00 sarahlearn3

Một hộp có 7 sản phẩm tốt và 3 sản phẩm xấu. Chọn ngẫu nhiên 3 sản phẩm từ hộp. Có bao nhiêu cách để chọn:
a. Ba sản phẩm từ hộp?
b. Ba sản phẩm đều là tốt?
c. Có 2 sản phẩm tốt và 1 sản xấu được chọn?

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Answers: 3

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Một hộp có 7 sản phẩm tốt và 3 sản phẩm xấu. Chọn ngẫu nhiên 3 sản phẩm từ hộp. Có bao nhiêu cách...
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