Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Separate groups within a population that share common attributes or characteristics, used in stratified random sampling to ensure homogeneous grouping.
AP course connection
Topic 3.3: 3.3 Random Sampling and Data Collection