ILABHORETHRIISIVIVINYO 06df = 36α = 0.05imbewu 99

Ukuchema kwesondo le-roulette

Isondo le-roulette elichemile lithanda amanye amagodi ngenxa yephutha elibonakalayo: i-fret exegayo, i-rotor engalingani, amagodi agugile. Ukuchema kwesondo le-roulette kukhona futhi sekuke kwasetshenziswa. Ubunzima ukuthi isondo elilungile ngokuphelele likhiqiza izinombolo “ezishisayo” njalo, ngakho umbuzo awukaze ube ukuthi inombolo iyashisa yini, kodwa ukuthi iphethini yonke ayilingani kakhulu yini kunalokho inhlanhla ekuvumelayo.

1. Thatha isampula yesondo elilungile

Ukujikeleza okuthathwe esondweni elilingisiwe elingenakuchema nhlobo. Shintsha ubukhulu besampula bese ubuka igodi elishisa kakhulu.

ukujikeleza370

okulindelekile ngegodi10.0

igodi elishisa kakhulu20 · liphume izikhathi ezingu-16 (4.32%)

elishisa kakhulu nokulindelekile+60% · 1.9σ

i-chi-square · p32.8 · 0.622

isinqumoabukho ubufakazi bokuchema

2. Okubonwe nokulindelekile

Ibha ngayinye iyigodi ngokulandelana kwesondo. Umugqa onamachashaza uyisibalo esilindelekile, n/37. Ibhande elifiphele lingu-±2 wokuchezuka okujwayelekile: esondweni elilungile cishe igodi elilodwa kwangamashumi amabili lizophumela ngaphandle kwalo ngenhlanhla nje.

0amagodi ngokulandelana kwesondo →26

3. Ukuhlolwa kwe-chi-square

Ukuhlola kuhlanganisa ukuthi igodi ngalinye likude kangakanani nokulindelekile, kuphindwe ngokwalo futhi kwalinganiswa. Esondweni elilungile isamba silandela ukusabalala kwe-chi-square okunamazinga enkululeko angu-36; i-p-value engaphansi kuka-0.05 ngokwesiko ibizwa ngokuthi ibalulekile.

χ² = Σ (Oᵢ − Eᵢ)² / Eᵢ Eᵢ = n/37 df = 36
n = 370 · E = 10.00 · χ² = 32.80 · p = 0.622

Isexwayiso ngobukhulu besampulaUma ukujikeleza kungaphansi kokungu-1,000 ukuhlola cishe akunawo amandla okuthola ukuchema okungokoqobo, futhi umphumela “obalulekile” ku-p < 0.05 uzovela ngenhlanhla ka-1 kumasampula alungile angu-20 owabhekayo. Ukuhlola amasondo amaningi, noma ukuphinda uhlole isondo elifanayo kuze liphumelele, kuqinisekisa imiphumela engamanga.

4. Ungadinga ukujikeleza okungakanani

Ukujikeleza okudingekayo ukuthola igodi elilodwa eliphuma kaningi kuno-1/37, ezingeni elingu-5% ohlangothini olulodwa namandla okuthola angu-80%. Igodi eliphuma ka-1 kwangu-35 esikhundleni sika-1 kwangu-37 lingaba yinzuzo enkulu yomdlali, futhi kudinga ukujikeleza okubhaliwe okungamashumi ezinkulungwane ukuze kuqinisekiswe.

izinga langempelainzuzo yomdlaliukujikeleza okudingekayongokujikeleza okungu-40/h

1 kwangu-25+44.0%1,10828 h

1 kwangu-30+20.0%4,392110 h

1 kwangu-33+9.1%15,747394 h

1 kwangu-35+2.9%69,4611,737 h

Ukuqinisekisa ukuchema kusho ukubhala ukujikeleza ubusuku nobusuku, okungamashumi ezinkulungwane.

Indlela yokusebenza

Isampula. Ukukhetha okulinganayo emagodini angu-37 kusetshenziswa isikhiqizi esinembewu (mulberry32, imbewu 99), ukuze ikhasi likwazi ukuphindwa.

Ukuhlola. Ukuhlolwa kwe-Pearson chi-square kokufaneleka, amazinga enkululeko angu-36, i-p-value evela kumsebenzi we-gamma ongaphelele ojwayelekisiwe (regularized incomplete gamma function).

Amandla okuthola. Ukusondeza ngokusabalala okujwayelekile kokuhlolwa kwesilinganiso esisodwa, α = 0.05 ohlangothini olulodwa, amandla okuthola angu-0.80.

Ububanzi. Ukuthola ngesitatistiki kuphela. Izimbangela ezibonakalayo nokuhlaziya okusekelwe ezigabeni (esikhundleni samagodi) kuchazwe ku-Ukuhlaziywa kwezigaba.

Okokuhlekisa

Isondo elilungile lenza izinombolo “ezishisayo” njalo ebusuku. Ukufakazela ukuchema kudinga ukujikeleza okungamashumi ezinkulungwane.

Imithombo

Pearson, K. (1900). On the criterion that a given system of deviations… Philosophical Magazine, 50(302).
Thorp, E. O. (1969). Optimal gambling systems for favorable games. Review of the International Statistical Institute, 37(3).
Ethier, S. N. (2010). The Doctrine of Chances: Probabilistic Aspects of Gambling. Springer. Isahluko 13, Roulette.