mbrother11
Joined: Jun 25, 2016
• Posts: 9
June 26th, 2016 at 10:19:27 PM permalink
I know why betting the 0-00-1-2-3 line in roulette is the worst bet mathematically you can make in roulette, but would someone tell me the odds of winning if I did the following? Bet \$5 on 0-00-1-2-3 and \$10 on black. As I see it, I would win something on 22/38 of the spins, or 58% of the time. But I don't know how to do the math to figure out whether those wins would be profitable or not... in other words, would I lose more money on the \$10 bets than I would win on the \$5 bet?
Greasyjohn
Joined: Dec 8, 2013
• Posts: 2169
June 26th, 2016 at 10:34:20 PM permalink
Welcome to the Forum.

If you know the 7.89% -EV bet is the worst bet at roulette why would you want to bet it in any combination? And more importantly, why would you not seek a single 0 wheel that only takes 1/2 your bet when you lose on even money wagers? The Mirage in Vegas has such a wheel (-1.31 EV) and I think the Venetian and other stores do to (not sure about other gambling destinations).
mbrother11
Joined: Jun 25, 2016
• Posts: 9
June 26th, 2016 at 11:01:04 PM permalink
I'll answer your questions in reverse rst, I am not lucky enough to be coming to Vegas, I'm going to be playing at an Indian casino in the if I want to play roulette -- which I do-- I have no choice but to play at a double-zero (American) style table.

Now, as to why I want to bet a lousy combination... I'm not sure I do... I just want to know the math... As I see it, if the 0 or 00 came up, I would win \$30, less the \$10 bet on black; if the 1 or 3 came up, I would win \$30 less the \$10 bet on black; if the 2 came up, I would win \$30 + \$10 cuz it's black ; and if any other black number came up I would win \$10 less the \$5 bet on the "5-number bet".

So 58% of the time I would make a profit, but 42% of the time i would lose \$15 ...

I hoped someone would tell me if my math is correct or if not, what would be correct..
mustangsally
Joined: Mar 29, 2011
• Posts: 2463
June 27th, 2016 at 9:03:48 AM permalink
Quote: mbrother11

So 58% of the time I would make a profit,

U left (right) that out
Quote: mbrother11

but 42% of the time i would lose \$15 ...

many would agree with U
Quote: mbrother11

I hoped someone would tell me if my math is correct or if not, what would be correct..

only U can really tell, as it matters to U

here is what I got
fighting over cereal
eventwinlossnetprobreturn
zeros301020 2/381.052631579
1,3301020 2/381.052631579
2 black40040 1/381.052631579
black1055 17/382.236842105
other015-15 16/38-6.315789474
....expected value-0.921052632
....edge-0.061403509

Sally

I lost that fight
but not the war (I wants all the raisins, not just a couple)
I Heart Vi Hart