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Mathematics, 23.07.2021 05:20, justin5647
Thời gian vận chuyển hàng hóa trên tuyến đường AB là biến ngẫu nhiên X có phân phối
chuẩn với trung bình u= 5 giờ, độ lệch chuẩn o= 0, 25 giờ.
a. Chuyến có thời gian lớn hơn (5,2+(28+2)/100) giờ được xem là trễ, tính tỉ lệ chuyến trễ?
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Thời gian vận chuyển hàng hóa trên tuyến đường AB là biến ngẫu nhiên X có phân phối
chuẩn với trung...
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