TH? TR??NG CH?NG KHOÁN - 5
c?n ph?i tính ??n m?t xác su?t an toàn và ch?p nh?n
r?i ro khi d? ?oán là không phù h?p. Không ai có th?
nói tr??c t??ng lai ch? b?ng thông tin trong quá kh?.
Tuy nhiên nh? có phân tích k? thu?t, kh? n?ng ?oán
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