Because they do. The machines must be exactly balanced as to the probabilities of winning; for every thousand dollars that go in, one thousand dollars should (theoretically) be paid out. Obviously this is not always the case.
Chance of winning: 2.78%
Chance of winning: 4.76%
Chance of winning: 0.99%
Chance of winning: 5.56%
Chance of winning: 12.5%
That means that you have a very slim chance of winning. About a 10% chance of you winning, and a 90% chance of the others winning.
I will tell you candidly, that you have no chance of winning.
Newzealand have a very little chance of winning the world cup.
Go to play the Slot Machine in Dukka. You pay 200 bp for unlimited slot machine for 10 minutes. If by any chance, you have a winning combination, you'll get either prizes or Dukka Coins.
They do not have a big chance of winning.
Here are the two for comparison;For 3 to 1 odds of winning;Probability of winning:0.25, or;Chance of winning:25%---------------------For 9 to 1 odds of winning;Probability of winning:0.1, or;Chance of winning:10%
none