已知前面99枚是金币 is a fact, however rare it is, it already happened an

所有跟帖： 

• and has the probability of 1. -燕京十景- ♀ (0 bytes) () 09/29/2014 postreply 11:12:31

• 如果钱币是随机分布到，99次抽到1次银币到可能性比1次都抽不到到可能性大太多了 -ttmum- ♀ (135 bytes) () 09/30/2014 postreply 06:30:06

• 那么“采样”就没有意义了：） -ttmum- ♀ (147 bytes) () 09/30/2014 postreply 06:42:06