辛普森詭論 (Simpson's Paradox)

Question

什麼是辛普森詭論阿
好難懂阿
網路上也沒什麼資料~~有誰可以提供一下
或是解釋一下呢?

Answer 1

辛普森詭論，就是說，表面上，兩個相關的變數，好像很有道理（例如，學校歧視女生，因為女生錄取率低），其實，當真正的另外一個關鍵變數引入時，可能使得當初的假設全然改觀，甚至於產生相反走向的結論。

Simpson's paradox
From Wikipedia, the free encyclopedia.

Simpson's paradox is a statistical paradox described by E. H. Simpson in 1951: an association in sub-populations may be reversed in the population. It appears that two sets of data separately support a certain hypothesis, but, when considered together, they support the opposite hypothesis。
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另外請參考：http://www.isi.edu/~sdlin/novel/paradox.htm