AP Statistics · Free-response, form B 2011

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

Question 2

Open answer
Question 2 — 2. People with acrophobia (fear of heights) sometimes enroll in therapy sessions to help them overcome this fear. Typically, seven or eight therapy sessions are needed before improvement is noticed. A study was…

Source: College Board — AP Statistics, Free-response, form B, 2011

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