What is the mathematical chance of this?

[hakapuku]

I played today at one MG casino. I placed 100$ bets on red 20 times. It only hit red 3 times and 17 times it hit black. Can somebody ,who knows roulettes' mathematics, tell me if this result is normal or may be something is rigged here?

[RobWin]

I played today at one MG casino. I placed 100$ bets on red 20 times. It only hit red 3 times and 17 times it hit black. Can somebody ,who knows roulettes' mathematics, tell me if this result is normal or may be something is rigged here?

I believe if i'm not wrong that when you are straight betting only Red or Black then your odds will always be 50-50 of hitting either or at any given spin...maybe Slotswizard will jump in here and help...Slots, where you at man ?

[winbig]

I played today at one MG casino. I placed 100$ bets on red 20 times. It only hit red 3 times and 17 times it hit black. Can somebody ,who knows roulettes' mathematics, tell me if this result is normal or may be something is rigged here?

20 spins? You can't tell anything from that sample size.

Even so, did it hit red 17 straight times and black 3? Or 6 red, 1 black, 5 red, 1 black, 6 red, 1 black? ... you get the picture.

If the picture isn't too clear, then here: What it boils down to is the fact that you're looking for the probability of one color hitting X number of times before the other color comes up, and not "Is it rigged if I lose 17 out of 20 spins?"

Check out http://wizardofodds.com/roulette

Random Roulette Spins

Before you waste your money testing a betting system in the casinos please use the following computer generated spins. Remember, it takes about 10,000 or so spins before the ups and downs start to average out and you see that no betting system can survive the long run.

Also - http://wizardofodds.com/askthewizard/fallacy.html

The probability of red winning 20 times in a row in roulette is (18/38)20 = 1 in 3,091,874. Thus, if red has already hit the last 19 spins the odds are that the next spin will almost certainly be black because of the long shot against 20 reds.

First, the odds of 19 reds in a row and then a black are the same as 20 reds in a row. The past does not matter. The probability of red after 19 reds is 18/38.

edit: Judging by your posts from several months ago, it seems that you thought MG software was rigged, even back then. Why continue to play at MG casinos if that was your thinking?

[LOOKAWAY]

Maybe i would not say odds and replace it with chance.

But maybe 50/50 from here to the end off time would be more right. Depending on how long our beautiful planet can hold out for, But im guesing it will go out on a black hakapuku.

But i do find at 3dice roulette plays out like that 1 colour in a row over and over again.

Its findind that colour then switching to other then going back and you get it over and over again, Most times when you play.

[Slotster!]

It's not 50/50, that's the mistake most people make with roulette. There's a green there for a reason

[SlotsWizard]

Keep in mind that 20 spins is so small a sample that it is statistically useless.

Zoozie, aka23, and/or others should be able to tell you the correct figures with certainty.

[RobWin]

It's not 50/50, that's the mistake most people make with roulette. There's a green there for a reason

Yea, you're right Slotster, I forgot about the 0 or 00, so you would have to factor that into and divide by the amount of red and black numbers on the board then ?

[bryand]

I played today at one MG casino. I placed 100$ bets on red 20 times. It only hit red 3 times and 17 times it hit black. Can somebody ,who knows roulettes' mathematics, tell me if this result is normal or may be something is rigged here?

I get 0.65%

[hakapuku]

There were not any ZEROs in my play

[winbig]

There were not any ZEROs in my play

When you're calculating odds/probabilities, what happens during a session doesn't come into the equation

ie: Even though 0/00 didn't come up while you were playing, they still had a chance to hit.