Averages, distributions and the level of aggregation
The city that got worse among the alleys that got better Did the average change, or did the world that makes up the average change?
What this series asks
- Are changes in outcomes mixed up with changes in composition?
- Does the same unit of aggregation mean the same target as before?
- What grounds justify carrying a partial trend over to the whole or to a new group?
The questions
1 · 2026 · 14 days until the schedule for next month's map is confirmed for 2026Difficulty-level advantage and overall completion rate: extra mappingSplit 10:1
2 · 2035 · 21 days until the schedule for the next inspection round is confirmed for 2035Shorter per-space waits and a higher union averageSplit 10:1
3 · 2180 · 6 months until the contract for maintaining joint knowledge is confirmed for 2180The unit for counting knowledge loss among restructured modulesSplit 8:3