再分别计算出各层的最优样本轮换率和总体的样本轮换率。

Then the paper computed the best sample rotation rate for each stratum and the whole.

youdao

一个差劲的采样策略并不能产生一个我们需要的代表总体的样本，而统计管理不太可能弥补这一点。

And statistical controls are unlikely to compensate for a poor sampling strategy that does not yield a sample representative of the population to which we want to generalize.

youdao

另外，你可以验证需求、样本数量以及验证点，以确保质量的总体评价结果。

In addition, percentile requirements, sample counts, and verification point failures can all be tracked to validate the overall quality of your measurements.

youdao

We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值

耶鲁公开课 - 金融市场课程节选

So what researchers do is they hope to get enough people in a sample, where overall, you hope to be capturing normal intake.

所以研究者做的是,让尽可能多的人群进入样本,总体上你就可以得到正常的摄入量了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And the other thing you can do is take self reports like the ones you're doing, hopefully do enough of them, and a random enough sample of the population, that you can extrapolate from that sample to the whole population, and try to estimate what people are eating in that way.

还有其他可以做的,比如大家正在做的这种个体调查,希望能把它做的充分些,如果有充足的随机样本,就可以从样本推断出,整个总体,从而推断哪类人有这样的饮食习惯

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选