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AP Statistics

Unit 3: Collecting Data

12–15% of exam score
Where you are No tests yet
A timed sectional mock on this unit

Sampling methods and their bias, observational studies against experiments, and the design of experiments.

Key formula
Random assignment⇒cause and effect; random sampling⇒generalisation\text{Random assignment} \Rightarrow \text{cause and effect; random sampling} \Rightarrow \text{generalisation}

What this unit covers

  • Sampling methods

  • Sources of bias

  • Observational studies and experiments

  • Experimental design: blocking and control

Other units in AP Statistics