當然了,如果不是隨機抽樣,比如限定在某個學校/群體,我們觀察到的也許不一樣。
所有跟帖:
• 這裏有ACT的Percentiles link -ShowMeData- ♂ (310 bytes) () 06/24/2024 postreply 14:14:43
• 這裏有ACT的Percentiles link -ShowMeData- ♂ (310 bytes) () 06/24/2024 postreply 14:14:43
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