推 broodstare:題庫班會教... 10/27 00:56
There are k+1 coins in a box. The ith coin will,
when flipped, turn up head with probability i/k,I=0,1,...k.
A coin is randomly slected from the box and is
then repeatedly flipped. If the first n flips all
results in heads, what is the conditional probability
that the (n+1)st flip will do likewise?
我的想法是
第n+1次和第n次的關係互為獨立
算出來答案是 n+1/k+1
但是答案是 k+1/2k
請高手幫忙解答一下 感謝...
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