your formula are good,but opperation is....

来源: jinjing 于 2010-07-04 15:07:20 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (164 bytes)
P(A1A2A5A2A5A3)+P(A1A2A5A2A4A3)+P(A1A2A5A3A4A3)+P(A5A2A5A3A4A3)=
1/16+1/32+1/16+1/16=6/32.
so,19/32 is right.
The best method was shown already by someone.

所有跟帖： 

• 回复：Still not correct, but thanks.... -tony_ren- ♂ 给 tony_ren 发送悄悄话 (117 bytes) () 07/04/2010 postreply 19:19:37

• P(A5A2A5A3A4A3)=1/16 ,it is not 1/8,last term is-1/32 -jinjing- ♀ 给 jinjing 发送悄悄话 (23 bytes) () 07/05/2010 postreply 07:30:05

请您先登陆，再发跟帖！

发现Adblock插件

如要继续浏览
请支持本站 请务必在本站关闭/移除任何Adblock

关闭Adblock后 请点击

请参考如何关闭Adblock/Adblock plus

安装Adblock plus用户请点击浏览器图标
选择“Disable on www.wenxuecity.com”

安装Adblock用户请点击图标
选择“don't run on pages on this domain”