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
The process of dividing a population or sample into subgroups (strata) based on a characteristic, then analyzing each stratum separately to reveal patterns masked in aggregate data.
AP course connection
Topic 3.3: 3.3 Random Sampling and Data Collection