| Clue | Source | Date |
|---|---|---|
| Mathematical process used to model unpredictable phenomena | New York Times | 05 Apr 2025 |
| Concept in statistics class | Newsday | 05 Aug 2021 |
| Workman and lad, unusually, in indication of trendlessness? | The Telegraph Toughie | 27 Sep 2018 |
| Act by ministry rejected in row, so no meaningful pattern here | The Times Cryptic | 09 Dec 2016 |