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- UID
- 223188
- 帖子
- 101
- 主题
- 94
- 注册时间
- 2011-7-11
- 最后登录
- 2016-11-15
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sample mean vs population mean
| I somehow associated using n-1 with computing the statistic for sample. Apparently is not the case with finding sample mean. If so, what is the difference between formulae for "sample mean" and "population mean"? |
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发表于 2011-7-11 17:45
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