Lukim Sesen: Strateji Tupela Dosen bilong Rulet
Ten dola long wan wan long tupela dosen, 24 namba i stap aninit long bet, inap fifti tanim. Strateji bilong tupela dosen long rulet em bet i karamapim planti namba. Em i win tupela tanim long tri na i kostim yet 2.70%.

Wanpela sesen ol i simulatim long 50 tanim, wantaim $10 long namba wan na namba tu dosen. Tetiwan win bilong $10, naintin lus bilong $20 (namba tri dosen o siro). Win tru −$70, bihain long em i bin antap $90. Bet i pilim olsem i no gat hevi long wanem em i win planti taim, tasol prais bilong en i wankain stret olsem olgeta narapela.
Plen: strateji bilong tupela dosen long rulet
$10 long namba wan dosenbetDosen1–12, 13–24 o 25–36, pe em i 2:1.Ritim olgeta → na $10 long namba tu. Namba long 1 i go long 24 i pe $20 long wanpela dosen na i lusim $10 long narapela: +$10. Namba long 25 i go long 36, o sirowilSiroWanpela grinpela hul we i no gat bet wan-long-wan, dosen o kolam i karamapim; em i as bilong edj bilong kasino. Narapela nem: wanpela siro, 0.Ritim olgeta →, i lusim tupela wantaim: −$20. Ekspektet velyumatematikEkspektet velyuAvarej resal long wanpela bet long longpela taim. −1/37 bilong mani bilong bet long olgeta bet olpasin bilong Yurop.Ritim olgeta →: (24 × 10 − 13 × 20)/37 = −20/37 = −$0.54 long wan wan tanim, em i 2.70% bilong $20. Em i win long 64.9% bilong ol tanim, na dispela namba i mekim ol man i laikim bet.
Ol tanim 1–25
Etin win, sevenpela lus: +$180 − $140 = +$40. Ol sevenpela lus i gat siro wanpela taim, na ran bilong tripela namba bilong namba tri dosen long ol tanim 11–13. Dispela i kostim $60 long wanpela ran na i pilim olsem samting i no save kamap. Tasol em 35.1% i kam wantaim long wanpela bung, na ol bung i save kamap olsem.

Ol tanim 26–50
Tetin win, twelpela lus: +$130 − $240 = −$110. Twelpela lus long 25 tanim em samting i kamap long 20% bilong ol taim, em i no samting i no save kamap. Long pinis −$70; antap tru +$90 long tanim 31. Bet i no givim bikpela go antap o go daun, long wanem win em $10 na lus em $20; em i wok isi isi tasol.
- p10 −$500
- p25 −$500
- namba long namel −$280
- p75 −$40
- p90 +$170
Kaunim mani
Olgeta mani yu betim $1,000 long 50 tanim. Avarej lusmatematikAvarej lusEkspektet velyu taims olgeta mani yu betim; avarej mani yu lusim long wanpela sesen o long wanpela taim.Ritim olgeta → $27; lus tru −$70, klostu wanpela standet diviesenmatematikStandet diviesenSkwea rut bilong varians; hamas longwe resal i save stap long ekspektet velyu.Ritim olgeta → daunbilo (σ long wan wan tanim em klostu $14, olsem na klostu $100 long 50 tanim). Wankain $20 long retbetRetBet wan-long-wan long 18 namba ret. Tok Frans: rouge.Ritim olgeta → bai i gat wankain avarej na bikpela σ moa, klostu $140 long sesen: tupela dosen em rot i gat liklik variansmatematikVariansMak bilong hamas ol resal i kalap nabaut long ekspektet velyu. I bikpela long bet long wanpela namba, i liklik long bet wan-long-wan.Ritim olgeta → moa long lusim wankain mani.
Wanem samting sesen i soim
Taim yu karamapim 24 namba, rulet i pilim olsem pilai yu save win planti taim, na yu save win tru: long 64.9% bilong ol tanim. PemaniPeMani bet i win i givim yu, ol i tok olsem “X long 1”, antap long mani bilong bet i kam bek.Ritim olgeta → i stap olsem: 35.1% yu lus i kostim tupela taim moa long wanem ol win i pe, na laiauttulLaiautGrid bilong bet ol i prinim long tebol. Narapela nem: table, felt, cloth.Ritim olgeta → i stretim dispela hap i kamap −1/37 bilong olgeta mani bilong bet. Putim wanpela sipmaniSipSamting i makim wanpela namba mani i no save senis, yu putim long laiaut bilong mekim bet. Narapela nem: check.Ritim olgeta → long siro olsem “insurens”, na edj bilong olgeta wantaim i stap yet 2.70%, long wanem prais bilong insurens tu em 2.70%. Pes Hevi: Tupela Dosen na Wanpela Sip i wokim dispela olgeta.
Ol askim
Wankain matematik: 24 namba, +1 yunitmaniYunitMani bilong bet bilong stat we wanpela sistem o wanpela pleia i wok long en. Ol i stori long ol progresen long yunit, olsem na ol i ken wok long wanem tebol.Ritim olgeta → taim i kisim, −2 taim i no kisim. Ol kolambetKolamTwelpela namba long wanpela lain i sanap long laiaut, pe em i 2:1.Ritim olgeta → i spredim ol namba long olgeta hap bilong wil; ol dosen i bungim ol long laiaut. Tupela i no makim wanpela samting.
Em i karamapim 25 namba; nau siro i givim win tru +$16, i no −$20, na yu baim $1 long wan wan tanim. Ekspektet velyu em −$0.57 long $21, em i 2.70% yet.
Em i planti taim, na pe i stret long en. Planti taim yu win $10. Sampela taim yu lus $20. Avarej em edj bilong kasinomatematikEdj bilong kasinoHap bilong olgeta mani bilong bet kasino i holim long avarej: 2.70% long rulet bilong Yurop.Ritim olgeta →.
Liklik lap

Win tupela tanim long tri. Lus tupela taim moa long namba tri. Wanem i kamap em 2.70%.
Ol As bilong Save
- Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling.