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Originally Posted by
PinkChip
If triple zero works like single and double zero, the chance of winning when betting on red/black drops from 18/37 to 18/38 = 9/19 to 18/39 = 6/13, that means from 48.65 to 47.37 to 46.15 percent. The resulting house edge then grows from 1/74 to 2/38 = 1/19 to 3/39 = 1/13, meaning from 1.35 to 5.26 to a whopping 7.69 percent (so the house edge for triple zero roulette is the same as for insurance bet). The English wiki article on Roulette seems to second this.
Note that there is one bet on the standard double-zero wheel that nonetheless is inferior to all the others and has the same 7.69% player disadvantage. It's the five-number 0, 00, 1, 2, 3 bet at the top of the layout that pays 6 to 1. So, if you bet it 38 times and pick up seven chips each of the five times you win (=35), you're left with a shortfall of 3/38 = 7.68%.
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