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Mathematics, 14.06.2021 16:50 mazolethrin5672

Kích thước chi tiết là biến ngẫu nhiên phân phối chuẩn với u=50cm. Kích thước thực tế của các chi tiết không nhỏ hơn 32cm và không lớn hơn 68 cm. Tìm xác suất để lấy ngẫu nhiên mọt chi tiết có kích thước: a) Lớn hơn 55cm b) Nhỏ hơn 40 cm

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Kích thước chi tiết là biến ngẫu nhiên phân phối chuẩn với u=50cm. Kích thước thực tế của các chi ti...
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