Practice — Mild · Solution
Verified checkpoints
| Visual | Check |
|---|---|
| Bar | Furniture $24.80M → Decor $5.02M, descending |
| Line | May 2025 peak $2,089,552 · February trough $1,142,332 |
| Matrix | Grand total $66,813,563.97 = the card |
| Share bar | 37.12 / 27.20 / 15.50 / 12.68 / 7.51 — sums to 100 (cell rounding aside) |
Title examples that pass the tests: "Furniture and Outdoor carry two-thirds of revenue" · "2025 peaked in May, not December" · "Reference: revenue by category and year" (a matrix may honestly claim to be reference) · "No category exceeds four-tenths of the business."
Reflection answers
- Disagreement between matrix and card would mean the two visuals sit in different filter contexts — a leftover visual-level filter, a slicer selection touching one but not the other, or (worse) two different measures wearing similar names. The Filters pane on each visual is the first stop. Numbers that should reconcile and don't are always a context story or a definition story.
- Most students report the matrix's title as hardest — because a reference table's honest claim is "you will want to look things up," which feels weak next to findings. That is fine: a matrix is allowed to claim reference. A bar chart whose title resists writing is the real warning sign.