Millionaire for Life 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 | 106 | 106.0 | |
| 1 | 132 | 127.2 | |
| 2 | 123 | 127.2 | |
| 3 | 137 | 127.2 | |
| 4 | 120 | 127.2 | |
| 5 | 145 | 127.2 | |
| 6 | 118 | 127.2 | |
| 7 | 132 | 127.2 | |
| 8 | 128 | 127.2 | |
| 9 | 89 | 106.0 |
How many different last digits does a draw have?
| Observed | Share | Expected | |
|---|---|---|---|
| 5 different | 84 | 34.1 % | 35.9 % |
| 4 different | 126 | 51.2 % | 49.9 % |
| 3 different | 34 | 13.8 % | 13.6 % |
| 2 different | 2 | 0.8 % | 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.