简单随机抽样

in hive-180932 •  3 months ago 

简单随机抽样，也叫纯随机抽样。就是从总体中不加任何分组、划类、排队等，完全随机地抽取调查单位。特点是：每个样本单位被抽中的概率相等，样本的每个单位完全独立，彼此间无一定的关联性和排斥性。简单随机抽样是其它各种抽样形式的基础。通常只是在总体单位之间差异程度较小和数目较少时，才采用这种方法。

hive-180932
3 months ago by

Downvoting a post can decrease pending rewards and make it less visible. Common reasons:

  • Disagreement on rewards
  • Fraud or plagiarism
  • Hate speech or trolling
  • Miscategorized content or spam

Submit
$0.00
    1 vote
    0
    Authors get paid when people like you upvote their post.
    If you enjoyed what you read here, create your account today and start earning FREE STEEM!