Sum of dice throwing

来源: crazy_math 于 2010-03-27 23:42:13 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (154 bytes)

A fair dice is thrown repeatedly. Let Xn be the total sum of the first n throws. What is the probability that Xn is divisible by 13 as n goes to infinite.

所有跟帖： 

• 回复：Sum of dice throwing -jinjing- ♀ 给 jinjing 发送悄悄话 (26 bytes) () 03/28/2010 postreply 10:06:41

• 回复：Cancel my anwser,It seems 1/13 -jinjing- ♀ 给 jinjing 发送悄悄话 (0 bytes) () 03/28/2010 postreply 10:21:44

• 回复：回复：Cancel my anwser,It seems 1/13 -crazy_math- ♂ 给 crazy_math 发送悄悄话 crazy_math 的博客首页 (75 bytes) () 03/29/2010 postreply 06:31:08

• Do my best (图) -Jinjing- ♀ 给 Jinjing 发送悄悄话 (275 bytes) () 03/29/2010 postreply 12:47:51

• P0 = (P12 + P11 + P10 + P9 + P8 + P7) / 6 -空指针异常- ♂ 给 空指针异常 发送悄悄话 (364 bytes) () 03/31/2010 postreply 10:50:20

• ? -jinjing- ♀ 给 jinjing 发送悄悄话 (0 bytes) () 03/31/2010 postreply 17:30:00

• 另一种解法 -空指针异常- ♂ 给 空指针异常 发送悄悄话 (989 bytes) () 03/31/2010 postreply 11:53:24

• oops，回错贴了，应该是knight jump，版主帮删了吧 -空指针异常- ♂ 给 空指针异常 发送悄悄话 (0 bytes) () 03/31/2010 postreply 11:56:31

• The problem is not clear. -乱弹- ♂ 给 乱弹 发送悄悄话 乱弹 的博客首页 (84 bytes) () 03/30/2010 postreply 18:30:30

• 回复：The problem is not clear. -jinjing- ♀ 给 jinjing 发送悄悄话 (76 bytes) () 03/30/2010 postreply 20:32:58

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