1) What is formula for Stratified Sampling? a) population/total population x sample size b) sample/total population x sample size c) sample/population x sample size 2) What is a sample size? a) a small group of data b) all of our data c) the data we cannot find

Sampling

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？