Trong the gioi lo de, moi quyet dinh sang suot deu bat dau tu viec phan tich thong ke ky luong. Mot trong nhung yeu to it duoc nguoi moi chu y nhung lai duoc cac cao thu lao lang dac biet quan tam chinh la xiu chu. Vay Xiu chu la gi trong khia canh thong ke va lam sao de tan dung no nham gia tang ty le trung?

Xiu chu – hieu mot cach don gian la con so dung dau trong giai dac biet cua ket qua xo so. Day khong phai la con so trung thuong chinh ma la co so de nguoi choi theo doi tan suat, tu do phat hien ra chu ky so co kha nang quay lai trong tuong lai gan. Noi cach khac, xiu chu la dau hieu giup nguoi choi xac dinh huong di cho cac con de ke tiep.

Chang han, neu trong 30 lan quay gan nhat, ban nhan thay so 4 thuong xuyen xuat hien o dau giai dac biet tu 6 den 7 lan, thi day co the la dau hieu cho thay so 4 dang trong chu ky hoat dong manh. Viec thong ke nay khong chi giup ban nhan dien xiu chu ma con ho tro trong viec chon nhung con de co chua so 4 de tang kha nang an.

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Phan tich thong ke thuong duoc thuc hien theo hai cach:

Thong ke theo ngay: Ghi lai xiu chu cua moi ngay trong vong 15 – 30 ngay gan nhat, tu do xac dinh con so nao xuat hien nhieu nhat.

Thong ke theo chu ky: Quan sat tung xiu chu va kiem tra chu ky xuat hien cua no – vi du, cu moi 4 ngay thi so 2 lai xuat hien dau giai dac biet mot lan.

Khi da co du lieu du lon, nguoi choi co the dua ra quyet dinh chinh xac hon khi danh de, vi du:

Neu xiu chu la so 6, ban co the danh cac con de bach thu, song thu, hoac lo co chua so 6 o dau (vi du: 60, 61, 62…).

Neu xiu chu lien tuc thay doi trong vai ngay, nen can nhac ngung danh de theo doi them.

Quan trong nhat, nguoi choi can ket hop thong ke voi cac phuong phap soi cau khac nhu lo roi, lo gan, de cham de gia tang do chinh xac.

Du vay, cung khong nen tuyet doi hoa vai tro cua xiu chu. No chi la mot phan trong tong the chien luoc choi de. Nguoi choi can co ke hoach von ro rang, khong tat tay vao mot ngay va biet dung lai dung luc de tranh sa vao vong xoay lo von.

Tom lai, khi da hieu xiu chu la gi va biet cach khai thac no bang phan tich thong ke, ban se co them mot cong cu ho tro dac luc de chien thang trong tro choi lo de – noi ma du lieu va xac suat la vu khi quan trong hon ca su may man.

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