AP Statistics · Free-response questions 2023

6 questions, each with its course unit and the official scoring guidelines.

Question 4

Open answer
Question 4 — 4. A medical researcher completed a study comparing an omega-3 fatty acids supplement to a placebo in the treatment of irritability in patients with a certain medical condition. Nineteen patients with the medical…

Source: College Board — AP Statistics, Free-response questions, 2023

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