英文数学概率题If three fair dice are thrown,and the sum is an odd number,what is the probability that all threedice show an odd number?

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英文数学概率题If three fair dice are thrown,and the sum is an odd number,what is the probability that all threedice show an odd number?
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英文数学概率题If three fair dice are thrown,and the sum is an odd number,what is the probability that all threedice show an odd number?
英文数学概率题
If three fair dice are thrown,and the sum is an odd number,what is the probability that all three
dice show an odd number?

英文数学概率题If three fair dice are thrown,and the sum is an odd number,what is the probability that all threedice show an odd number?
A:the sum is an odd number,B:all three dice show an odd number
p(A)=0.5,p(B)=0.5^3,p(A|B)=1
p(B|A)=p(A|B)*P(B)/P(A)=1/4

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