Drills
Counting through the frequencies to the middle, without rewriting the list.
Author note — to cover
Locate the median from an ungrouped frequency table: find the middle position from the total frequency, then count cumulatively through the rows without rewriting the list. Cover odd and even totals. Grouped data yields only a median class, a separate page; cumulative frequency curves are Higher, on Presenting data. Both tiers. (S4)
- Fluency — direct questions on the median from a frequency table, limited to this lesson's stated scope (4 questions).
- Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
- Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).
The test
—coming soon—