proportional sampling   (TTS Sound)

The proportional_sampling has 1 Senses.

• proportional sampling, stratified sampling, representative sampling
• 層化抽出法
• the population is divided into subpopulations (strata) and random samples are taken of each stratum
• 人口が部分母集団（層）に分けられ、それぞれの層の無作為標本がとられる