MillionDAY 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 | 1522 | 1,445.5 | |
| 1 | 1724 | 1,734.5 | |
| 2 | 1751 | 1,734.5 | |
| 3 | 1742 | 1,734.5 | |
| 4 | 1707 | 1,734.5 | |
| 5 | 1686 | 1,734.5 | |
| 6 | 1474 | 1,445.5 | |
| 7 | 1417 | 1,445.5 | |
| 8 | 1374 | 1,445.5 | |
| 9 | 1503 | 1,445.5 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 5 different | 1172 | 36.9 % | 36.1 % |
| 4 different | 1555 | 48.9 % | 49.8 % |
| 3 different | 437 | 13.7 % | 13.4 % |
| 2 different | 16 | 0.5 % | 0.6 % |
| 1 different | 0 | 0.0 % | 0.0 % |
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.