Ntwahonan afa ho nhwehwɛmu
Afidie mu mfomsoɔ ka ntokuru a ɛbɛn wɔn ho bom, ɛno nti sɔ ntwahonan no afa hwɛ, ɛnyɛ nɔma baako baako nko ara.

Kyekyɛ ntokuru 37 no mu yɛ afa a ɛtoa so, na fa nkonim a wohunuu toto deɛ wɔhwɛ kwan ho wɔ ɔfa biara mu. Animhwɛ ankasa taa da adi sɛ ɔfa baako anaa mmienu a ɛbɛn wɔn ho a ɛhye wɔ nhwɛsoɔ a ɛmfa ho mu.
Ɔkwan
Kyekyɛ ntwahonan no mu yɛ afantwahonanƆfaNtokuru a ɛtoa so wɔ ntwahonan no so, a ɛnyɛ kuo a ɛwɔ bɛt nhyehyɛe no so.Kenkan ne nyinaa → a ɛtoa so, mpɛn pii afa nsia a emu biara yɛ ntokurunneɛma a wɔde diTokuruRotor no so tokuru 37 a nɔma wom no mu baako. Wɔfrɛ no nso slot, cup.Kenkan ne nyinaa → nsia anaa nson, a wodi ntwahonan no nhyehyɛe akyi sene bɛt nhyehyɛenneɛma a wɔde diBɛt nhyehyɛeBɛt nhyehyɛe a wɔatintim wɔ ɛpono no so. Wɔfrɛ no nso ɛpono, ntoma, felt.Kenkan ne nyinaa → no. Ma ɔfa biara a ntokuru k wom no, nkonim a wɔhwɛ kwan yɛ n·k/37 na gyinapɛn nsakraeɛakontaabuGyinapɛn nsakraeɛNsakraeɛ ntini; ntam kwan a ɛtaa da deɛ ɛfiri mu ba ne boɔ a wɔhwɛ kwan ntam.Kenkan ne nyinaa → no yɛ √(n·p·(1−p)) a p = k/37. Bu z = (deɛ wohunuu − deɛ wɔhwɛ kwan)/σ ma ɔfa biara. Ɔfa a ɛboro +2 so fata sɛ wosan hwɛ; deɛ ɛboro +3 so wɔ nhwɛsoɔ mmienu a ɛmfa ho mu no yɛ anigyeɛ.
Adɛn nti na afa
Tokuru baako sɔhwɛ wɔ hokwan 37 a ɛbɛtumi ama adanseɛ hunu, na nsɛnkyerɛnne no yɛ mmerɛ wɔ biara mu. Ɔfa sɔhwɛ wɔ hokwan nsia, na nsɛnkyerɛnne no ka bom wɔ ntokuru a ɛbɛn wɔn ho so. Ɛne nyansahu nso hyia: rotornneɛma a wɔde diRotorNtwahonan no fa a ɛkyini a ntokuru no wɔ so.Kenkan ne nyinaa → a abɛ ntwea ma bɔɔlnneɛma a wɔde diBɔɔlBɔɔl ketewa a wɔto no ma ɛtu mmirika wɔ ne kwan mu tia rotor no. Ɛnnɛ bɔɔl yɛ ivorine anaa Teflon, 18–21 mm.Kenkan ne nyinaa → no tɔ ɔfa a ɛba fam no so kɛse, na ɛboa ɔfa bi; ntamu bannneɛma a wɔde diNtamu banDadeɛ ban a ɛtwa ntokuru mmienu ntam wɔ ntwahonan no so.Kenkan ne nyinaa → a ɛhinhim anaa akyea sesa sɛdeɛ bɔɔl no huruhuruw wɔ ntokuru a ɛwɔ ne nkyɛn no mu; bɔɔl kwannneɛma a wɔde diBɔɔl kwanƆkwan a ɛtwa ntwahonan no ano ho hyia a bɔɔl no tu mmirika wɔ mu ansa na ɛbrɛ ase na ɛtɔ. Wɔfrɛ no nso ɔkwan a ɛwɔ soro.Kenkan ne nyinaa → a ahoa ma baabi a bɔɔl no tɔ a ɛboa ntokuru biara a ɛwɔ aseɛ berɛ a ɛtɔ no, na sɛ rotor ahoɔhare sesa brɛoo a, ɛtrɛ kɔ ɔfa kɛseɛ so. Saa mfomsoɔ yi mu biara mmoa tokuru baako nko ara.
Afa a ɛkɔ so
Ahyeɛ a wɔasi pintinn betumi akyekyɛ ɔfa a ɛhye mu ama afa mmienu na ɛma ne ahoɔden so tew. Ɔkwan foforɔ a ɛboa ma ntokuru k mfɛnsere twa ntwahonan no ho hyia, bu z wɔ gyinabea 37 biara so, na ɛhwehwɛ deɛ ɛkɔ soro sene biara. Sɛ ntwahonan no yɛ pɛ a, z 37 a ɛhyia wɔn ho no mu deɛ ɛkɔ soro sene biara taa yɛ bɛyɛ 2.2 kɔsi 2.5, ɛno nti mfɛnsere a ɛkɔ so no deɛ ɛkɔ soro sene biara a ɛba fam sene 2.5 yɛ dede, na ahyeɛ a ɛfata sɛ wohwɛ no kɔ soro saa ara, bɛyɛ 3.5.
Firi ɔfa so kɔ bɛt so
Sɛ wɔadi adanseɛ sɛ ɔfa bi hye a, bɛt a ɛfata ne fipam nɔmabɛtFipam nɔmaNɔma bi ne ntokuru mmienu a ɛwɔ ne nkyɛn biara wɔ ntwahonan no so, nɔma baako bɛt agorɔ sika enum.Kenkan ne nyinaa → wɔ ne mfinimfini so anaa nɔma baako bɛtbɛtNɔma baako bɛtNɔma baako pɛ, ɛtua 35:1.Kenkan ne nyinaa → a wode wo nsa ahyehyɛ wɔ so. Mfasoɔ sɔhwɛ no ne ɔfa no nkonim dodoɔ a wode toto akatuasikaAkatuaDeɛ bɛt a edi nkonim de ma, a wɔka no sɛ “X tia 1” ka bɛt sika a ɛsan ba no ho.Kenkan ne nyinaa → no ho: ɛsɛ sɛ ɔfa a ntokuru nsia wom ba boro 6/36 = 16.7% (deɛ wohunuu, na wɔsan hunuu) ansa na nɔma baako agorɔ sikasikaAgorɔ sikaAdeɛ a ɛgyina hɔ ma sika dodoɔ bi a ɛnsesa, a wode to bɛt nhyehyɛe no so de to bɛt. Wɔfrɛ no nso check.Kenkan ne nyinaa → nsia bɛba baabi a wonnya na wonhwere, berɛ a deɛ ɛyɛ pɛ yɛ 16.2%. Nsonsonoeɛ no yɛ ɔha nkyɛmu fa, na ɛno nti na ɛgye kyinhyia mpem du du pii ansa na woadi ho adanseɛ.
Nhwehwɛmu afidie no
Roulette ntwahonan animhwɛ nhwehwɛmu afidie a ɛwɔ saa wɛbsaet yi so no gye kyinhyia nkyerɛwee, bu chi-square, na ɛkyerɛ ntwahonan no sɛ heat map a ɔfa z boɔ wom, na mpaapaemu a ɛwɔ atifi ha no na ɛde di dwuma ansa. Ɛsan frafra wo nsɛm no de kyerɛ sɛdeɛ akontaabu korɔ no te sɛ ntwahonan no yɛ pɛ a, na ɛno ne aduro a ɛyɛ ntɛm sene biara ma nhyehyɛe a wohunu wɔ baabi a ɛnni hɔ.
Akontaabu kwan
Nsɛmmisa
Nsia na wɔtaa de di dwuma. Sɛ ɛsua a, wohwere nkyerɛkyerɛmu; sɛ ɛdɔɔso a, wohwere tumi. Si ho gyinaeɛ ansa.
Ka wɔn bom na bu z ma ɔfa a woaka abom no. Mfomsoɔ ankasa taa da ahyeɛ bi so.
Daabi. Afa yɛ ntwahonan no afa. Dumienu kuobɛtDumienu kuo1–12, 13–24 anaa 25–36, akatua 2:1.Kenkan ne nyinaa → ne santen teebɛtSanten teeNɔma dumienu a ɛwɔ bɛt nhyehyɛe no santen tee baako mu, akatua 2:1.Kenkan ne nyinaa → nyɛ afa.
Serew kakra

Mfomsoɔ yɛ afidie mu deɛ. Afidie mu deɛ fa baabi pɔtee. Sɔ afa hwɛ.
Nsɛm fibea
- Barnhart, R. T. Beating the Wheel.
- Pearson, K. “On the criterion that a given system of deviations from the probable…”