Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 1162  |  »Ø¸´: 5
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

wshaoxin

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

[ÇóÖú] Ö¤Ã÷Ò»¸öµÈ¼ÛÃüÌâ ÒÑÓÐ1È˲ÎÓë

¿ÒÇë¸÷λ´óÏÀÖ¸µãÒ»ÏÂÈçºÎÖ¤Ã÷ͼÖеĵÈʽ£¬ÆäÖÐr>0, ·½¿òûÓÐÒâ˼£¬µ±×÷¿Õ¸ñÓÃÁË¡£Ö±½ÓÉÏͼ£º

Ö¤Ã÷Ò»¸öµÈ¼ÛÃüÌâ
360½ØÍ¼20150823155903578.jpg
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

Godhelpsthosewhohelpthemselves!
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sskkyy

Òø³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
¸ÅÂʵĿɼÓÐÔ¿ÉÒԵõ½£ºP(x>=n)= P(n=<x<n+1) + P(x>=n+1)£¬²»¶ÏµØ½«P(x>=n+1)д³ÉÕâÖÖÐÎʽ£¬
ËùÒÔµÚÒ»¸öÇóºÍʵ¼ÊÉÏÊÇ \sum n^(r-1) n P(n=<x<n+1) = \sum n^r P(n=<x<n+1) = E |X|^r  ¼õÈ¥ P(-1=<x<=1)¡£

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

4Â¥2015-08-24 22:35:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 6 ¸ö»Ø´ð

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

È·ÐÅÊÇ|X|>n£¬²»ÊÇ|X|<= n ?

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

2Â¥2015-08-23 20:39:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wshaoxin

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
2Â¥: Originally posted by feixiaolin at 2015-08-23 20:39:05
È·ÐÅÊÇ|X|>n£¬²»ÊÇ|X|<= n ?

È·ÐÅÊÇ|X|>n.ÔÚA course in probability theory, by Kailai Chung,page 46£¬Ï°Ìâ5.
Godhelpsthosewhohelpthemselves!
3Â¥2015-08-24 14:52:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wshaoxin

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
4Â¥: Originally posted by sskkyy at 2015-08-24 22:35:01
¸ÅÂʵĿɼÓÐÔ¿ÉÒԵõ½£ºP(x>=n)= P(n=<x<n+1) + P(x>=n+1)£¬²»¶ÏµØ½«P(x>=n+1)д³ÉÕâÖÖÐÎʽ£¬
ËùÒÔµÚÒ»¸öÇóºÍʵ¼ÊÉÏÊÇ \sum n^(r-1) n P(n=<x<n+1) = \sum n^r P(n=<x<n+1) = E |X|^r  ...

ÎÒ¾õµÃ»¹ÊÇÓÐЩÎÊÌâÄØ£¬ÄÜ·ñÔÙ¸øÖ¸µãÒ»ÏÂÄØ£¿²»Ê¤¸Ð¼¤¡£
Ö¤Ã÷Ò»¸öµÈ¼ÛÃüÌâ-1
360½ØÍ¼20150825113741187.jpg

Godhelpsthosewhohelpthemselves!
5Â¥2015-08-25 11:39:34
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +14 Ò¶zilin 2026-04-13 15/750 2026-04-13 20:19 by ѧԱJpLReM
[¿¼ÑÐ] 290Çóµ÷¼Á +18 ¿Â»´È» 2026-04-12 20/1000 2026-04-13 12:56 by cyh¡ª315
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +11 СȽҪŬÁ¦ 2026-04-10 13/650 2026-04-13 11:46 by µç»¯Ñ§¼°´ß»¯
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¹¤085600 331·Ö +7 ÌìÏÂww 2026-04-09 7/350 2026-04-13 09:01 by lhj2009
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +10 ²»»á³ÔÈâ 2026-04-12 10/500 2026-04-12 22:51 by ÁãÁã¶þ
[˶²©¼ÒÔ°] ÐÂÒ»´úµç×ÓÐÅÏ¢294Çóµ÷¼Á ²»ÌôѧУ +7 Ytyt11 2026-04-09 8/400 2026-04-12 16:57 by ajpv·çÀ×
[¿¼ÑÐ] 296Çóµ÷¼Á +6 Íô£¡£¿£¡ 2026-04-09 6/300 2026-04-11 11:25 by zhq0425
[¿¼ÑÐ] 288Çóµ÷¼Á +15 ´úfish 2026-04-09 16/800 2026-04-11 10:26 by wwj2530616
[¿¼ÑÐ] 275Çóµ÷¼Á +9 1624447980 2026-04-08 10/500 2026-04-11 10:20 by Delta2012
[¿¼ÑÐ] 346£¬¹¤¿ÆÇóµ÷¼Á +3 moser233 2026-04-09 3/150 2026-04-11 10:04 by zhq0425
[¿¼ÑÐ] 311Çóµ÷¼Á +13 xypÏë¶ÁÊé 2026-04-10 14/700 2026-04-11 09:41 by Öí»á·É
[¿¼ÑÐ] ÖÐҩѧµ÷¼Á ³õÊÔ324 +4 Ñó¸Ê¾Õ¡¢ 2026-04-10 6/300 2026-04-11 09:41 by gong120082
[¿¼ÑÐ] 281Çóµ÷¼Á +11 ¾õµÃºÃµÄ°É 2026-04-10 11/550 2026-04-11 09:35 by ÄæË®³Ë·ç
[¿¼ÑÐ] ²ÄÁÏÀà284µ÷¼Á +40 Ïë»»ÊÖ»ú²»Ïë½âÊ 2026-04-08 48/2400 2026-04-10 23:28 by 314126402
[¿¼ÑÐ] 263ÄÜÔ´¶¯Á¦×¨Ë¶Çóµ÷¼Á +3 ¼Ó´óºÅ·¹ºÐ´ü 2026-04-10 3/150 2026-04-10 22:23 by 286640313
[¿¼ÑÐ] 08¹¤Ñ§ 309·ÖÇóµ÷¼Á +6 Yin DY 2026-04-08 6/300 2026-04-10 09:18 by Delta2012
[ÂÛÎÄͶ¸å] ÇóÖúÎÄÏ×Ô­ÎÄ 10+3 18500821399 2026-04-08 3/150 2026-04-09 16:56 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] 349ѧ¿Æ»¯Ñ§045106Çóµ÷¼Á£¬»¯Ñ§Àà¶¼¿ÉÒÔ +8 ±£ºÃ¶®¶® 2026-04-08 8/400 2026-04-09 14:03 by xulei3024
[¿¼ÑÐ] 0860004 Çóµ÷¼Á 309·Ö +6 Yin DY 2026-04-09 6/300 2026-04-09 10:19 by °¡Àî999
[¿¼ÑÐ] Çóµ÷¼Á£¬ÏÖÔÚ»¹ÄÜÌîµÄ +3 Éϰ¶Ð¡Ó¨¼ÓÓÍ 2026-04-08 3/150 2026-04-08 14:30 by zhq0425
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û