Production of a sample proportion 按比例制作一个样品
sample proportion test 双样本比率检验 ; 单样本比例检验
distribution of sample proportion 样本比例分布
TM sample proportion TM样本量
Will produce a sample proportion 将按比例制作一个样品
sample estimate of proportion 比例的样本估计值
Produce a sample in proportion 按比例制作一个样品
At the national level it is easy enough, though expensive, to account for this by surveying CPOs and including them in the sample in proportion to their share of the population.
尽管昂贵,但从国家水平来看,民意调查如按CPOs在总人口中所占的比例计算,调查就会很容易。
"The rest are primarily going to be smaller organisms, and a large proportion of them will be dwelling in places that are hard to reach or hard to sample, like the deep oceans," said Dr Tittensor.
“剩余的应该主要是更小型的生物,它们中有相当大的比例可能生活在我们几乎无法到达和取样的地方,例如深海。”Tittensor博士说。
How to Sample a specific proportion of lines from a big file in r?
如何从R中的大文件的特定比例的线样?
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