Triss Simulation

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Triss simulation

The Triss game is a very popular swedish scratch ticket ("skraplott") game. The values and probabilities are gathered from different sources (mostly from Svenska Spel's Triss page and the reward plan page [both in swedish] and my own calculations.

The reward values and their probabilities

Since I have not incorporated all the features in the real Triss game, you should take the calculations below with some grain of salt, even if they seems to be deceptively exact! And of course, I may also have miscalculated some things...

The cost (ante) of each Triss ticket is 25 SEK. Below is the reward values and probabilities I have used.

The average (expected) reward per ticket is 12.25 SEK, and with the cost of 25SEK per ticket it means that the player will loose approx. 12.75 SEK per ticket. That's not really a fair game...



Reward Probability (About) one in
2500000 0.0000005 2000000
1000000 0.0000005 2000000
250000 0.0000020 500000
100000 0.0000045 222222
20000 0.0000010 1000000
10000 0.0000480 20833
2000 0.0000250 40000
1000 0.0002250 4444
200 0.0001250 8000
100 0.0055000 182
75 0.0215000 46.5
50 0.0850000 11.8
25 0.0935000 10.7
0 0.7940685 1.26

For example this means that 4 of 5 tickets (20%) will give no reward at all and only 1 in 5 tickets will give you something.

When you do win something, about 80% of the time you will win 25SEK (45%) or 50SEK (41%), and about 10% you win 100SEK.

If a person buys 4 Triss tickets each week, i.e. 4*52=208 tickets per year, the expected times the person will get each rewards is

RewardExpected times
25000000.0001
10000000.0001
2500000.0004
1000000.0009
200000.0002
100000.0099
20000.0052
10000.0468
2000.0260
1001.1440
754.4720
5017.6800
2519.4480
0165.1662

This means for example, that for about 165 tickets the reward is 0 (zero, nothing).

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Created by Hakan Kjellerstrand hakank@bonetmail.com