回复：Quant面试题：喝醉了（2.5星）

来源: 于 2009-08-07 10:27:26 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

E(50) = 0.5*(E(49)+E(51))+1, and E(49)=E(51)

btw, if the result is correct, there cannot be exactly one equation wrong (either all correct or at least two wrong).