These cases are new relative to the ten lessons but the answer key is also publicly accessible; they are not secure exams. A teacher may adapt the numbers and context if prior access matters. All records are invented; no real person, product, game or physical trial is represented. Work independently on your first response. The usual graph, tactile, text, AAC, calculator or exact-word scribe access remains available; say which evidence supports your claim.
Check A · Day 15 · animation cue-board draft
A fictional animator lists pairs (scene cards, cue marks) for four invented storyboard drafts: (1,4), (2,7), (3,10), (4,17). A draft note proposes L(x)=3x+1 cue marks for x scene cards and says “Every added scene guarantees exactly three extra marks. The line fits every draft.” No animation was produced or watched.
- Label a scatterplot or give an exact ordered-pair text representation with units. Describe the direction and identify a point that deserves a closer look.
- Calculate the line prediction at x=4, then
listed − predictedresidual there, with sign and units. What does the residual measure and what does it not explain? - Audit “every draft”: name one record that conflicts. Rewrite the note as a cautious claim about this four-draft notebook.
- State one next method or inclusion detail needed before a claim about other animations.
Check B · Day 20 · sticker-design register
A fictional designer recorded prototype sticker designs, not people. Each design has a theme category (Ocean, Space, or No theme assigned) and a surface (Foil or Plain). The six cell counts are:
| Theme | Foil | Plain |
|---|---|---|
| Ocean | 8 | 4 |
| Space | 9 | 9 |
| No theme assigned | 2 | 3 |
A fictional notice says “Two thirds of all sticker designs are foil because the Ocean ones are.” No stickers were manufactured, sold or tested.
- Add all three row totals, two column totals and the grand total. Show a second direction for checking the grand total.
- Calculate the proportion foil given Ocean and the proportion foil among all designs. If imagining a uniform random selection from this register, express these as conditional and overall probabilities too. Keep each denominator visible; percentages may be rounded to one decimal place.
- Explain what happens if the no-theme row is dropped. Does an unknown theme mean an unknown surface?
- Repair the notice in one sentence with a source-bound proportion, then give one claim the table cannot support.