You have to assume that else it is not solvable

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• it is solvable if it is given -朱哥靓- ♂ (29 bytes) () 01/04/2013 postreply 17:29:36

• Hehe, sure, it can be a number other than 1/2, -xiaoxing- ♀ (0 bytes) () 01/04/2013 postreply 17:31:48

• But when nothing is known 1/2 is a fair assumption -xiaoxing- ♀ (0 bytes) () 01/04/2013 postreply 17:32:38

• You know the guy win twice straight -朱哥靓- ♂ (93 bytes) () 01/04/2013 postreply 17:42:19

• When you flip a coin, you may get 3 heads up in a row, -xiaoxing- ♀ (120 bytes) () 01/04/2013 postreply 17:46:44

• Again, u assume it's a fair coin -朱哥靓- ♂ (0 bytes) () 01/04/2013 postreply 17:51:54

• the question is if you observe two heads in a row, -stockganster- ♂ (83 bytes) () 01/04/2013 postreply 18:39:48

• think this way -朱哥靓- ♂ (268 bytes) () 01/04/2013 postreply 18:48:12