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Bias and Variance Sample allocation Motivating Example In this video, we have listed the differences between stratified sampling and cluster sampling. This PowerPoint slide showcases five stages. Samuli Laine, Tero Karras NVIDIA Research. sample, simple random sampling, stratified, cluster, and systematic sampling methods with examples. This document discusses different sampling techniques used Definition (Stratified random sampling) Stratified random sampling is a sampling method in which the population is first divided into strata. In this, data are stratified on the target and a sample is taken from each strata so that the rare target class will be Stratified Sampling | Definition, Guide & Examples Published on September 18, 2020 by Lauren Thomas. TWO-STAGE CLUSTER SAMPLING (WITH QUOTA SAMPLING AT SECOND STAGE). 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