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Grade 9 · unit review

Review: Publish a Reproducible Data Argument

For 12 completed attempts out of 15 supplied attempts, write a reproducible result with provenance and a limit. Separately classify an unavailable phone test.

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Bring the unit skills together

Use these 4 new cases to check your reasoning. Choices are temporary and are not saved to an account, sent to staff or recorded as school grades. Download your current review choices before leaving or reloading.

Unit review questions
1. Record collected on model day 7. Which provenance element is described?
Need a hint?
  • Record the origin, measurement definition and transformation separately.
  • A polished chart is not a substitute for provenance.
2. Fictional log has 15 completed attempts among 20 total attempts. Attempt completion percentage?
Need a hint?
  • Divide completed attempts by all supplied attempts and state the denominator.
  • Do not call an attempt rate a people rate.
3. Sample reach beyond the one group is unknown. Which evidence is stated?
Need a hint?
  • Match the claim to the evidence actually checked.
  • Correct arithmetic does not establish causation or population representativeness.
4. A navigation test reproducibly reaches an error. Classify the report item.
Need a hint?
  • Separate verified observations, known failures, missing tests and explicitly deferred work.
  • Do not relabel an unavailable test as a successful test.

The download contains your current choices and any checked feedback. Keep the separate transfer-task work in your own document; downloading its instructions does not mark it complete.

Use the skills in a new task

For 12 completed attempts out of 15 supplied attempts, write a reproducible result with provenance and a limit. Separately classify an unavailable phone test.

Work on paper or in your own document. Explain the choices you made.

  • Use only supplied fictional inputs and state the relevant rule.
  • Include labeled steps or evidence for each decision.
  • Name one limitation or tempting mistake.
  • Check that the result meets the task and revise a justified error.
Compare with a model response

The attempt rate is 12/15=80% for the supplied fictional log. Report its definition and formula; it is not a unique-person or causal outcome claim. The phone test remains unverified rather than being marked passed.

A different response can also meet the criteria. Compare the evidence and reasoning, rather than copying the wording.