📊AP Statistics Review
Sampling Methods and Sources of Bias
Sampling Methods and Sources of Bias
Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Resources
We review the purpose of surveys/sampling, meet three "good" random sampling methods (simple random, cluster, and stratified samples), and discuss possible sources of bias in sampling/surveys (non-representative samples, response bias, and nonresponse)