附件2 样本量字码 sample size code
sqrt(sample_size) # 绘制正态分布的pdf norm = scipy.stats.
sampling plans for reduced inspection (master table) sample size
item/粒径/3859420" data-lemmaid="3859420">粒径 /a>(grain size)"
10%: our population is at least 10 times our sample sizelarge
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