Mathematics, 08.07.2021 14:00 angelinakanno

Thời gian sinh trưởng của một loại virut là biến ngẫu nhiên có phân phối chuẩn với trung bình 280 giờ và độ lệch chuẩn 15 giờ. Tỷ lệ virut có thời gian sinh trưởng trên 290 giờ là: (Biết Ф(0,6667) = 0,7475)

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Thời gian sinh trưởng của một loại virut là biến ngẫu nhiên có phân phối chuẩn với trung bình 280 gi...

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