Lotto 6/49 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 | 2228 | 2,184.0 | |
| 1 | 2734 | 2,730.0 | |
| 2 | 2688 | 2,730.0 | |
| 3 | 2752 | 2,730.0 | |
| 4 | 2717 | 2,730.0 | |
| 5 | 2725 | 2,730.0 | |
| 6 | 2714 | 2,730.0 | |
| 7 | 2773 | 2,730.0 | |
| 8 | 2688 | 2,730.0 | |
| 9 | 2735 | 2,730.0 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 6 different | 941 | 21.1 % | 20.6 % |
| 5 different | 2188 | 49.1 % | 49.6 % |
| 4 different | 1168 | 26.2 % | 26.5 % |
| 3 different | 160 | 3.6 % | 3.3 % |
| 2 different | 2 | 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.