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相關唔蘊含因果(英文:correlation does not imply causation)係統計學上嘅一句說話,指緊就算兩個變數之間有統計相關,都唔表示兩個變數之間有因果關係;假想而家有兩個變數 同 之間有勁嘅相關(皮亞遜積差相關係數數值大),噉可以表示三個可能性-
有唔少統計學嘅學生都以為兩個變數之間有相關表示咗兩者有因果關係,但呢個係一個錯誤嘅諗法,所以統計學界就有咗句噉嘅說話用嚟提醒學生要小心[1]。