Ukuhlaziywa kwezigaba
Amaphutha omzimba athinta amagodi angomakhelwane ndawonye, ngakho hlola izingxenye zesondo, hhayi izinombolo ezizodwa kuphela.
Hlukanisa amagodi angu-37 abe yizigaba ezilandelanayo bese uqhathanisa ukushaywa okubonakele nokulindelekile esigabeni ngasinye. Ukuchema kwangempela ngokuvamile kuvela njengesigaba esisodwa noma ezimbili ezingomakhelwane ezishisayo emasampuleni azimele.
Indlela
Hlukanisa isondo libe yizigabaisondoIsigabaIngxenye eqhubekayo yamagodi alandelanayo esondweni, ehlukile eqenjini lezinombolo ethebuleni lokubheja.Funda konke → ezilandelanayo, ngokuvamile izingxenye eziyisithupha zamagodiokokusebenzaIgodiEsinye sezikhala ezingu-37 ezinezinombolo ku-rotor. Kubuye kuthiwe: slot, cup.Funda konke → ayisithupha noma ayisikhombisa, ulandela ukuhleleka kwesondo hhayi ithebula lokubhejaokokusebenzaIthebula lokubhejaIgridi yokubheja ephrintiwe etafuleni. Kubuye kuthiwe: itafula, i-felt, indwangu.Funda konke →. Esigabeni ngasinye esinamagodi angu-k, ukushaywa okulindelekile kungu-n·k/37 kanti ukuchezuka okujwayelekileizibaloUkuchezuka okujwayelekileImpande yesikwele yokuguquguquka (variance); ibanga elivamile lomphumela ukusuka enanini elilindelekile.Funda konke → kungu-√(n·p·(1−p)) lapho u-p = k/37. Bala u-z = (okubonakele − okulindelekile)/σ esigabeni ngasinye. Isigaba esingaphezu kuka-+2 sifanelwe ukubhekwa futhi; esingaphezu kuka-+3, emasampuleni amabili azimele, siyathakazelisa.
Kungani izigaba
Ukuhlolwa kwegodi elilodwa kunamathuba angu-37 okunika umphumela ongamanga kanye nophawu olubuthakathaka ekuhlolweni ngakunye. Ukuhlolwa kwezigaba kunamathuba ayisithupha kanye nophawu oluhlangana kuwo wonke amagodi angomakhelwane. Kuphinde kuhambisane ne-physics: i-rotorokokusebenzaI-rotorIngxenye yesondo ejikelezayo ephethe amagodi.Funda konke → ethambekile yenza ibholaokokusebenzaIbholaIbhola elincane eliphonswa emzileni libheke ngakolunye uhlangothi lwe-rotor. Amabhola esimanje enziwa nge-ivorine noma nge-Teflon, angu-18–21 mm.Funda konke → liwele kakhulu ohlangothini oluphansi, okwenza ingxenye ethile ithandeke; isihlukanisiokokusebenzaI-fretIsihlukanisi sensimbi phakathi kwamagodi amabili esondweni.Funda konke → esixegayo noma esigobile sishintsha ukugxuma emagodini aseduze kwaso; umzila webholaokokusebenzaUmzila webholaUmsele osemaphethelweni ibhola eligijima kuwo ngaphambi kokuthi lehlise isivinini liwe. Kubuye kuthiwe: umzila ophezulu.Funda konke → oguguleke wakha indawo yokuwela ethanda noma yimaphi amagodi angaphansi kwayo ngesikhathi sokuwela, futhi uma isivinini se-rotor sishintsha kancane lokho kusabalala engxenyeni ebanzi. Alikho kulawa maphutha elithanda igodi elilodwa lodwa.
Izigaba ezihambayo
Imingcele engaguquki ingahlukanisa ingxenye eshisayo phakathi kwezigaba ezimbili futhi iyinciphise. Enye indlela ehambisanayo ishelelisa iwindi lamagodi angu-k lizungeze isondo, ibala u-z kuzo zonke izindawo ezingu-37, bese ifuna okuphezulu kakhulu. Okuphezulu kakhulu kwamaphuzu e-z angu-37 ahlobene uma isondo lingachemile ngokuvamile kucishe kube ngu-2.2 kuya ku-2.5, ngakho okuphezulu kwewindi elihambayo okungaphansi kuka-2.5 kuwumsindo nje, futhi umkhawulo wokuthakazelisa uphakeme ngokufanayo, cishe ku-3.5.
Kusuka esigabeni kuya ekubhejeni
Uma isigaba siqinisekiswa ukuthi siyashisa, ukubheja okungokwemvelo kungukubheja omakhelwaneukubhejaOmakhelwaneInombolo kanye namagodi amabili nhlangothi zombili zayo esondweni, amathokheni amahlanu e-straight up.Funda konke → abazungeze phakathi nendawo yaso, noma iqoqo lama-straight upukubhejaI-straight upInombolo eyodwa, kukhokha u-35:1.Funda konke → abekwe ngesandla kuso sonke. Ukuhlolwa kwenzuzo kuqhathanisa izinga lokushaywa kwesigaba nenkokheloimaliInkokheloLokho ukubheja okuwinile okubuyisayo, okushiwo ngokuthi “X ku-1” ngaphezu kwenani elibhejiwe elibuyiswayo.Funda konke →: isigaba samagodi ayisithupha kumele sishaywe ngaphezu kuka-6/36 = 16.7% wesikhathi (okubonakele, okuphindiwe) ukuze amathokheniimaliIthokheniUphawu olumele inani elinqunyiwe, olubekwa ethebuleni lokubheja ukuze ubheje. Kubuye kuthiwe: check.Funda konke → ayisithupha e-straight up angabi nakulahlekelwa noma nzuzo, uma kuqhathaniswa no-16.2% wesondo elingachemile. Umehluko uyihhafu yephuzu lephesenti, yingakho ukukuqinisekisa kudinga amashumi ezinkulungwane zokujikeleza.
Umhlaziyi
Umhlaziyi wokuchema kwesondo le-roulette kule sayithi wamukela uhlu lokujikeleza, ubale i-chi-square, bese ukhombisa isondo njengemephu yokushisa enamaphuzu e-z ezigaba, nokuhlukanisa okungenhla njengokuzenzakalelayo. Uphinde uxube idatha yakho ukuze ukhombise ukuthi izibalo ezifanayo zibukeka kanjani uma isondo lingachemile, okuyikhambi elisheshayo lokubona amaphethini angekho.
Ifomula
Imibuzo
Eziyisithupha zijwayelekile. Ezimbalwa zilahlekelwa ukucaciseleka; eziningi zilahlekelwa amandla. Nquma kusengaphambili.
Zihlanganise bese ubala u-z wengxenye ehlanganisiwe. Iphutha langempela livame ukweqa umngcele.
Cha. Izigaba ziyizingxenye zesondo. AmadaziniukubhejaIdazini1–12, 13–24 noma 25–36, kukhokha u-2:1.Funda konke → namakholamuukubhejaIkholamuIzinombolo eziyishumi nambili ekholamu eyodwa eqondile yethebula lokubheja, kukhokha u-2:1.Funda konke → akuzona izigaba.
Okokuhlekisa
Amaphutha angawomzimba. Okomzimba kusendaweni eyodwa. Hlola izingxenye.
Imithombo
- Barnhart, R. T. Beating the Wheel.
- Pearson, K. “On the criterion that a given system of deviations from the probable…”