Main content
Study design
AP Stats: DAT (BI), DAT‑1 (EU), DAT‑2 (EU), VAR (BI), VAR‑1 (EU), VAR‑3 (EU)
AP Stats: DAT (BI), DAT‑2 (EU), DAT‑2.A (LO), DAT‑2.A.1 (EK), DAT‑2.A.2 (EK), DAT‑2.B (LO), DAT‑2.B.1 (EK), DAT‑2.B.2 (EK), DAT‑2.E (LO), DAT‑2.E.1 (EK), DAT‑2.E.2 (EK), DAT‑2.E.3 (EK), DAT‑2.E.4 (EK), DAT‑2.E.5 (EK), DAT‑2.E.6 (EK), VAR (BI), VAR‑1 (EU), VAR‑1.E (LO), VAR‑1.E.1 (EK)
Learn
Identifying a sample and populationGeneralizabilty of survey results exampleExamples of bias in surveysExample of undercoverage introducing biasIdentifying bias in samples and surveys
Practice
Identifying the population and sampleGet 3 of 4 questions to level up!
Generalizability of resultsGet 5 of 7 questions to level up!
Bias in samples and surveysGet 5 of 7 questions to level up!
AP Stats: DAT (BI), DAT‑2 (EU), DAT‑2.C (LO), DAT‑2.C.1 (EK), DAT‑2.C.2 (EK), DAT‑2.C.3 (EK), DAT‑2.C.4 (EK)
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Techniques for generating a simple random sampleTechniques for random sampling and avoiding bias
Practice
Simple random samplesGet 3 of 4 questions to level up!
Sampling methodsGet 5 of 7 questions to level up!
AP Stats: DAT (BI), DAT‑1 (EU), DAT‑1.C (LO), DAT‑1.C.2 (EK), DAT‑2 (EU), DAT‑2.A (LO), DAT‑2.A.3 (EK), DAT‑2.A.4 (EK), DAT‑2.B (LO), DAT‑2.B.3 (EK)
Learn
Types of statistical studiesWorked example identifying experimentWorked example identifying observational studyObservational studies and experiments
Practice
Observational studies versus experimentsGet 5 of 7 questions to level up!
Learn
Introduction to experiment designThe language of experimentsPrinciples of experiment designRandom sampling vs. random assignment (scope of inference)Matched pairs experiment designInvalid conclusions from studies exampleCan causality be established from this study?
Practice
Experiment designsGet 3 of 4 questions to level up!
Finding errors in study conclusionsGet 3 of 4 questions to level up!
Experiment design considerationsGet 3 of 4 questions to level up!
About this unit
Statistics is all about forming questions and gathering data to explore those questions. This unit covers sampling and survey methods, observational studies, and basic experiment design.AP® is a registered trademark of the College Board, which has not reviewed this resource.