关键是样本不是群体的random sample，所以没法用它来对群体做inference

来源: 过来人2 于 2022-12-24 20:26:34 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent