Lotto Belgique last-digit statistics: how are the final digits distributed?
Last digit = the final digit of a number (7, 17, 27 … have the last digit 7). A popular strategy says the winning numbers should have as many different last digits as possible. Here are the figures.
Frequency of each last digit
| Last digit | Observed | Expected | |
|---|---|---|---|
| 0 | 833 | 838,4 | |
| 1 | 1018 | 1.048,0 | |
| 2 | 1009 | 1.048,0 | |
| 3 | 1049 | 1.048,0 | |
| 4 | 1069 | 1.048,0 | |
| 5 | 1043 | 1.048,0 | |
| 6 | 867 | 838,4 | |
| 7 | 792 | 838,4 | |
| 8 | 886 | 838,4 | |
| 9 | 866 | 838,4 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 6 different | 314 | 20,0 % | 21,1 % |
| 5 different | 773 | 49,2 % | 49,6 % |
| 4 different | 435 | 27,7 % | 26,1 % |
| 3 different | 50 | 3,2 % | 3,2 % |
| 2 different | 0 | 0,0 % | 0,1 % |
Line with different last digits
Expected values are exact or simulated, assuming purely random draws. The draws follow chance exactly, and a last-digit rule does not change your chance of winning.