It should be: (1/2+1/4+1/8)*(1/2+1/4)=21/32

来源: ManYou 于 2010-06-19 10:40:08 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

所有跟帖： 

• If p1,p3;p2,p4 had been connecded,you would be right -jinjing- ♀ 给 jinjing 发送悄悄话 (0 bytes) () 06/19/2010 postreply 19:51:10

• You are correct. -ManYou- ♂ 给 ManYou 发送悄悄话 (4 bytes) () 06/30/2010 postreply 17:13:45

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

请您先登陆，再发跟帖！