You are correct.

來源: ManYou 於 2010-06-30 17:13:45 [] [舊帖] [給我悄悄話] 閱讀數 : (4 bytes)
回答: It should be: (1/2+1/4+1/8)*(1/2+1/4)=21/32 由 ManYou 於 2010-06-19 10:40:08

_:$

所有跟帖： 

• It got to same anwser: (1/2+1/4+1/8)*(1/2+1/4)*4/6=7/16 -ManYou- ♂ 給 ManYou 發送悄悄話 (0 bytes) () 06/30/2010 postreply 18:41:37

請您先登陸，再發跟帖！