maths~~~~~
2010-04-18 11:28 pm
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回答 (1)
2010-04-19 8:11 am
✔ 最佳答案
P(B|A) = P(A∩B) / P(A) = 1/(3+1) = 1/4
收錄日期: 2021-04-23 20:43:38
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100418000051KK00953