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Posted 08 July 2010 - 10:50 PM
Posted 09 July 2010 - 02:29 AM
X X X X X
BAR X BAR BAR BAR
X X X X X
Posted 09 July 2010 - 03:02 AM
Posted 09 July 2010 - 03:06 AM
5 BAR has only 1 permutation
= P1*P2*P3*P4*P5
4 BAR has 5 permutations
= P1*P2*P3*P4
+ P1*P2*P3*P5
+ P1*P2*P4*P5
+ P1*P3*P4*P5
+ P2*P3*P4*P5
3 BAR has 10 permutations
= P3*P4*P5
+ P2*P4*P5
+ P2*P3*P5
+ P2*P3*P4
+ P1*P4*P5
+ P1*P3*P5
+ P1*P3*P4
+ P1*P2*P5
+ P1*P2*P4
+ P1*P2*P3
Posted 09 July 2010 - 03:09 AM
Posted 09 July 2010 - 03:12 AM
Quote:
Original post by Hodgman
Find the probability of a BAR coming up on each single reel (Num BAR / Total Symbols on Reel) so you've got P1..Pn (where n is number of reels).
Then you've got to go through all the permutations (the different ways you can get N BARs) and add them together.
e.g. for a 5 reel game*** Source Snippet Removed ***When I worked in 'gaming', we'd check these percentages by doing the math (like this), and double-check by writing a simulation of the game in C and seeing if it produced the same result (withing a statistically relevant error margin) after millions of random tests.
BTW We had some fancy custom built software for helping do this kind of math, but Excel was actually easier to use and more flexible in most cases ;)
4 BAR
= P1*P2*P3*P4
* P1*P2*P3*P5
* P1*P2*P4*P5
* P1*P3*P4*P5
* P2*P3*P4*P5
Posted 09 July 2010 - 03:16 AM
Quote:Yep - this is also what BattleMetalChris did when he assumed that each reel had the same weightings and then multiplied by the number of permutations (i.e. that's equivalent to adding the permutations together).
Original post by HL706
So if I add the different outcomes together, rather than multiplying, the results should be statistically correct?
Posted 09 July 2010 - 09:37 PM
Posted 10 July 2010 - 12:44 AM
Quote:
Original post by Katie
They're pseudo-random.
They know how much money's been fed in, they know how much they've paid out. Their goal is to hit a (say) 70% ratio between these (Or whatever ratio is demanded by the local legislation).
So all they do is pick a random wheel position, work out the payout, work out if it helps them get to the target percentage (eventually) and if not pick again.
Posted 10 July 2010 - 02:22 AM
Posted 10 July 2010 - 06:17 AM
Posted 11 July 2010 - 03:06 PM
Quote:Actually, they are. They're not even "pseudo random" - they have real physical RNG hardware inside them (not just pseudo-RNG software), which makes them far more random than anything you can create on a desktop PC.
Original post by Denzin
slot machines arent random... at all.
Quote:I've not worked in AWP, but this doesn't happen at all in actual slot machines. The amount that's gone in and the amount that comes out has absolutely no influence at all on the results (and if it does, your organization would lose their license).
Original post by Katie
They're pseudo-random.
They know how much money's been fed in, they know how much they've paid out. Their goal is to hit a (say) 70% ratio between these (Or whatever ratio is demanded by the local legislation).
So all they do is pick a random wheel position, work out the payout, work out if it helps them get to the target percentage (eventually) and if not pick again
Posted 11 July 2010 - 08:44 PM
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