b***k
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bnapt (bnapt) 于 (Wed Oct 22 01:11:06 2008) 提到:
A and B play the following game: A flips a fair coin N times (N>=0). B flips
the same coin N+1 times. B wins iff he gets strictly more heads than A.
What is the probability that B will win?
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timur (timur) 于 (Wed Oct 22 01:19:02 2008) 提到:
0.5
P(N,N+1)=0.5P(N,N)+0.5(1-P(N,N))
flips
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kevintang (kevinuk) 于 (Wed Oct 22 04:2 |
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