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#1
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¢ÍÇÔ¸Õ¤Ô´ÊÓËÃѺ⨷Âì¢é͹Õé˹èͤÃѺ
1 ¡Ó˹´ãËé A B C à»ç¹à«µã´æ«Öè§$ \frac{n(A)+n(B)+n(C)}{3}=34$ ààÅÐ
$n(A\cup B\cup C)=46$ ¨§ËÒ¤èÒ·Õè¹éÍ·ÕèÊØ´·Õèà»ç¹ä»ä´é¢Í§ $n(P(A\cap B \cap C))$ A) 1024 B)256 C) 128 D) 64 |
#2
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¨Ò¡ÍÊÁ¡ÒÃ Bonferroni
$n(A\cap B \cap C)\geqslant n(A)+n(B)+n(C)-2n(U)$ $n(A\cap B \cap C)\geqslant 102-92=10$ $n(P(A\cap B \cap C))\geqslant 2^{10}=1024 楀$
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