Cash Five 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 | 1154 | 1,086.0 | |
| 1 | 1408 | 1,448.0 | |
| 2 | 1397 | 1,448.0 | |
| 3 | 1455 | 1,448.0 | |
| 4 | 1505 | 1,448.0 | |
| 5 | 1421 | 1,448.0 | |
| 6 | 1096 | 1,086.0 | |
| 7 | 1046 | 1,086.0 | |
| 8 | 1073 | 1,086.0 | |
| 9 | 1115 | 1,086.0 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 5 different | 985 | 38.9 % | 39.9 % |
| 4 different | 1263 | 49.8 % | 48.7 % |
| 3 different | 278 | 11.0 % | 11.0 % |
| 2 different | 8 | 0.3 % | 0.4 % |
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.