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Câu 94: Phương sai sai số thuần nhất khiA. Giá trị tuyệt đối các phần dư tăng theo chiều tăng của một (một số) biến giải thích có trong mô hìnhB. Bình phương các phần dư tăng theo chiều tăng của một (một số) biến giải thích có trong mô hìnhC. Giá trị tuyệt đối các phần dư giảm theo chiều tăng của một (một số) biến giải thích có trong mô hìnhD.Không tồn tại bất kỳ mối liên hệ giữa các phần dư và các biến giải thích có trong mô hình.

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