Step-by-step: di two-dozen strategy fi roulette

Di plan: di roulette two dozens strategy

$10 pon di fus dozenbet demDozen1–12, 13–24 or 25–36, pay 2:1.Read di whole ting → an $10 pon di second. A numba fram 1 to 24 pay one dozen $20 an lose di odda $10: +$10. A numba fram 25 to 36, or zeropon di wheelZeroDi one green pocket weh no even-money, dozen or column bet nuh cover; a weh di house edge come fram. Nex name: single zero, 0.Read di whole ting →, lose both: −$20. Expected valuemathsExpected valueDi average result pon evry bet inna di long run. −1/37 a di stake fi evry standard European bet.Read di whole ting →: (24 × 10 − 13 × 20)/37 = −20/37 = −$0.54 evry spin, an dat a 2.70% a $20. Win rate 64.9%, an a dat figure sell di bet.

Spin 1–25

Eighteen win, seven loss: +$180 − $140 = +$40. Di seven loss include zero one time an a run a tree third-dozen numba at spin 11–13 weh cost $60 back to back an feel like di exception. It did jus a di 35.1% a come inna a bunch, an bunch a wah dem do.

Spin 26–50

Thirteen win, twelve loss: +$130 − $240 = −$110. Twelve loss inna 25 spin a a 20% ting, nuh rare. Final −$70; top +$90 at spin 31. Di bet neva gi a big swing nuh way, cause di win a $10 an di loss $20; it jus grind.

Di account

Total bet $1,000 ova 50 spin. Expected lossmathsExpected lossExpected value times all di money yuh bet; di average amount yuh lose ova a session or a period (di loss yuh fi expec pon average).Read di whole ting → $27; actual −$70, bout one standard deviationmathsStandard deviationDi square root a variance; ow far a result usually deh fram di expected value.Read di whole ting → below (σ evry spin a bout $14, suh bout $100 ova 50 spin). Di same $20 pon redbet demRedEven-money bet pon di 18 red numba. Inna French: rouge.Read di whole ting → woulda have di same expectation an a bigger σ, bout $140 ova di session: two dozen a a lower-variancemathsVarianceA measure a ow wide di result dem spread roun di expected value. High fi straight up, low fi even-money bet.Read di whole ting → way fi lose di same amount.

Wah di session show

Fi cover 24 numba mek roulette feel like a game yuh usually win, an yuh do: 64.9% a di spin dem. Di payoutmoney mattaPayoutWah a bet weh win gi yuh back, weh dem quote as “X to 1” on top a di stake weh come back.Read di whole ting → set suh dat di 35.1% weh yuh lose cost twice wah di win dem pay, an di betting layoutgearBetting layoutDi bettin grid weh print pon di table. Nex name: table, felt, cloth.Read di whole ting → tune di ratio to −1/37 a di total stake. Put a chipmoney mattaChipA token weh stand fi a fix amount, weh yuh put pon di betting layout fi mek a bet. Nex name: check.Read di whole ting → pon zero fi “insurance” an di blended edge still a 2.70%, cause di insurance price at 2.70% too. Di page “Problem: Two Dozens and a Chip” work it tru.

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