Random selection refers to the process of selecting individuals from a population in such a way that every individual has an equal chance of being chosen.
Imagine you have a jar filled with different colored marbles. If you close your eyes and randomly pick one marble from the jar, you are using random selection.
Simple Random Sampling (SRS): Simple random sampling involves selecting individuals from a population in such a way that every possible sample has an equal chance of being chosen.
Stratified Sampling: Stratified sampling involves dividing the population into subgroups (strata) based on certain characteristics and then randomly selecting individuals from each subgroup.
Cluster Sampling: Cluster sampling involves dividing the population into clusters or groups and randomly selecting entire clusters to include in the sample.
Study guides for the entire semester
200k practice questions
Glossary of 50k key terms - memorize important vocab
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.