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2. Chuong 1: ??I TU?NG NGHI?N C?U C?A TH?NG K? . I- SO LU?C V? S? RA ??I V? PH?T TRI?N C?A TH?NG K? 1.1 Kh?i ni?m v? th?ng k? - V? d? 1: Ch? s? gi? c? h?ng ti?u d?ng c?a c? nu?c th?ng 2 so v?i th?ng 1 nam 2008 tang 6%, so v?i c?ng k? nam 2007 tang 14%.- V? d? 2: T? l? h? ngh?o theo chu?n m?i c
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