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Câu 93: Khi hồi quy thu nhập phụ thuộc vào tuổi và giới tính dựa trên mẫu quan sát gồm 100 nhân viên trong công ty bạn đang làm việc, nhận định nào sau đấy đúng?A. Chúng ta rất dễ gặp phải hiện tượng đa cộng tuyếnB. Chúng ta an toàn khi giả định rằng mô hình không có khuyết tật đa cộng tuyếnC. Chúng ta không cần phải để ý đến hiện tượng tự tương quanD. Cả B và C

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