Mathematics, 16.06.2021 05:00, Sebs1

giá cà phê trên thị trường có phân bố chuẩn với giá trung bình lag 26000 đồng/kí, độ lệch chuẩn 2000 đồng. k là giá trị tại đó cà phê có giá trị lớn hơn k với xác suất 90%. k bằng

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giá cà phê trên thị trường có phân bố chuẩn với giá trung bình lag 26000 đồng/kí, độ lệch chuẩn 2000...