Québec 49 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 | 1508 | 1.485,6 | |
| 1 | 1929 | 1.856,9 | |
| 2 | 1893 | 1.856,9 | |
| 3 | 1888 | 1.856,9 | |
| 4 | 1809 | 1.856,9 | |
| 5 | 1896 | 1.856,9 | |
| 6 | 1788 | 1.856,9 | |
| 7 | 1862 | 1.856,9 | |
| 8 | 1815 | 1.856,9 | |
| 9 | 1810 | 1.856,9 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 6 different | 619 | 20,4 % | 20,6 % |
| 5 different | 1568 | 51,7 % | 49,6 % |
| 4 different | 765 | 25,2 % | 26,5 % |
| 3 different | 79 | 2,6 % | 3,3 % |
| 2 different | 2 | 0,1 % | 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.