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 | 1,484.1 | |
| 1 | 1928 | 1,855.1 | |
| 2 | 1891 | 1,855.1 | |
| 3 | 1885 | 1,855.1 | |
| 4 | 1805 | 1,855.1 | |
| 5 | 1894 | 1,855.1 | |
| 6 | 1786 | 1,855.1 | |
| 7 | 1861 | 1,855.1 | |
| 8 | 1812 | 1,855.1 | |
| 9 | 1810 | 1,855.1 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 6 different | 618 | 20.4 % | 20.6 % |
| 5 different | 1567 | 51.7 % | 49.6 % |
| 4 different | 764 | 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.