How many repeats?

[speedomes]

Hi there, I was wondering if anyone knew the odds on this happening- A group of 18 numbers have appeared once in the last 25 spins, what are the odds that one of those numbers in that 18 appears again in the next 12 spins?
many thanks for info. Happy New Year

Mike

[Shorty]

I may be waaaay off here but I'm saying that there is approximately 0.12% chance of missing all 12 spins (99.88% chance of hitting).

But remember after each miss the chance of hitting decreases until an approximate 49% chance to hit on the 12th spin.

[speedomes]

Cheers Shorty, has to be very slim, thanks for the confirmation, I think you are spot on


regards
Mike

[purple]

Hi Shorty, how do you figure this out? I mean the odds?

[winkel]

in 52635 tests
730 times appeared after spin 25 18 numbers once
269 times more than 18 numbers hit just once

no fun to wait for that.

br
winkel

[Kon-Fu-Sed]

Hi all,

Hi Shorty, how do you figure this out? I mean the odds?

To find the odds you can go here:
nolinks://vlsroulette.com/grabb/

Select "Hit or Sleep (0)" - for single-zero
Enter 18 for the bet
Enter 12 for the spins

Result: Probability in % to hit at least once in 12 spins = 99.9663780790578


Regards,
KFS

[Rudy]

Hi Shorty, how do you figure this out? I mean the odds?

Or alternatively dig out the calculator on windows and select scientific view.

The chances of 18 numbers not hitting are 19/37
The chances of 18 numbers not hitting in 12 spins are therefore 19/37 ^ 12 (ie 19/37 multiplied by itself 12 times).

The probablity of at least one hit in 12 spins is therefore 1 minus 19/37 ^ 12

On the calculator, divide 19 by 37 and press 'x^y' 12 to mutiply by itself 12 times. That's the probablity of 12 misses.

For the probablity of a hit, enter that figure into memory, clear the calculator  and pre  1 minus MR

That gives the far more accurate figure  of 99.966378079057805237607293836253 %

[VLSroulette]

Always good to se Math-aware people in action!

[Rudy]

Always good to se Math-aware people in action!

Math-aware people don't get any action Victor, we're far too boring.

[VLSroulette]

I seem to bend math a bit by the simple fact of leaving when I'm up. As gambling math is based on infinite samples and infinite-betting punters

[VLSroulette]

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