±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 403  |  »Ø¸´: 2

zdcamel

ľ³æ (ÖøÃûдÊÖ)

ëë³æ

[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖúÓйØÕý̬·Ö²¼µÄÎÊÌâ ÒÑÓÐ2È˲ÎÓë

ÎÒÔÚ¿´Ò»¸ö¹úÍâµÄ½Ì²Ä£¬½²Õý̬·Ö²¼µÄ£¬ÔÚϰÌⲿ·Ö£¬ÓиöÌâÄ¿ÊÇÕâÑùдµÄ£ºIf X is a normally distributed variable with a mean of 24 and standard deviation of 2, find: p(X>28|X>=26).
ÇëÎÊÖмäµÄ¡°|¡±ÊÇʲôÒâ˼Êǰ¡£¿´ÓÀ´Ã»ÓнӴ¥¹ýÕâ¸ö£¬Ð»Ð»Ö¸½Ì£¬²»Ê¤¸Ð¼¤£¡£¡
»Ø¸´´ËÂ¥
ÎҺܸöÐÔ£¬¹þ¹þ
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

inhaul

гæ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Ìõ¼þ¸ÅÂÊP(A|B)¾ÍÊÇʼþ A ÔÚÁíÍâÒ»¸öʼþ B ÒѾ­·¢ÉúÌõ¼þϵķ¢Éú¸ÅÂÊ¡£
2Â¥2010-12-22 23:35:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hongjq

Òø³æ (СÓÐÃûÆø)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Ìõ¼þ¸ÅÂÊ,ÔÚ>26ÒÑ·¢ÉúµÄÌõ¼þÏÂ,>28·¢ÉúµÄ¸ÅÂÊ
p(X>28|X>=26)= p(X>28)/ p(X>=26).
Õâ¶ù,X>28·¢Éú,X>=26±ØÈ»ÏÈ·¢Éú.
ÒýÓûØÌû:
Originally posted by zdcamel at 2010-12-22 23:02:08:
ÎÒÔÚ¿´Ò»¸ö¹úÍâµÄ½Ì²Ä£¬½²Õý̬·Ö²¼µÄ£¬ÔÚϰÌⲿ·Ö£¬ÓиöÌâÄ¿ÊÇÕâÑùдµÄ£ºIf X is a normally distributed variable with a mean of 24 and standard deviation of 2, find: p(X>28|X>=26).
ÇëÎÊÖмäµÄ¡°|¡± ...

3Â¥2010-12-29 10:57:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ zdcamel µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 081200-11408-276ѧ˶Çóµ÷¼Á +6 ´Þwj 2026-03-26 6/300 2026-03-29 01:11 by hanserlol
[¿¼ÑÐ] 085602 »¯¹¤×¨Ë¶ 338·Ö Çóµ÷¼Á +12 ·³ÕСç÷ 2026-03-27 12/600 2026-03-28 15:41 by L135790
[¿¼ÑÐ] 286Çóµ÷¼Á +12 PolarBear11 2026-03-26 12/600 2026-03-28 12:14 by zllcz
[¿¼ÑÐ] ¡¾Çóµ÷¼Á¡¿085601²ÄÁϹ¤³Ìר˶ | ×Ü·Ö272 | +6 ½Å»¬µÄÊØ·¨¹«Ãñ 2026-03-27 6/300 2026-03-28 11:02 by gjlllb
[¿¼ÑÐ] 339Çóµ÷¼Á£¬Ïëµ÷»Ø½­ËÕ +6 ¿¾ÂóÑ¿ 2026-03-27 8/400 2026-03-28 10:40 by ¿¾ÂóÑ¿
[¿¼ÑÐ] 286Çóµ÷¼Á +4 ¶ªµôÀÁ¶è 2026-03-27 7/350 2026-03-28 08:07 by baoball
[¿¼ÑÐ] 086000µ÷¼Á +3 7901117076 2026-03-26 3/150 2026-03-27 21:34 by Jianing_Mi
[¿¼ÑÐ] Ò»Ö¾Ô¸ÉϺ£Àí¹¤ÄÜÔ´¶¯Á¦£¨085800£©310·ÖÇóµ÷¼Á +3 zhangmingc 2026-03-27 4/200 2026-03-27 19:01 by ¸øÄãÄã×¢ÒâÐÝÏ¢
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á£¬Ò»Ö¾Ô¸ÄÏÅ©083200ʳƷ¿ÆÑ§Ó빤³Ì +5 XQTJZ 2026-03-26 5/250 2026-03-27 14:49 by ¿ñìÅÂóµ±µ±
[¿¼ÑÐ] »¯Ñ§308·ÖÇóµ÷¼Á +8 ÄãºÃÃ÷ÌìÄãºÃ 2026-03-23 9/450 2026-03-27 14:01 by Ñî¹âÓÚÇàÔÆ
[¿¼ÑÐ] 322Çóµ÷¼Á +4 ÎÒÕæµÄºÜÏëѧϰ 2026-03-23 4/200 2026-03-27 13:51 by ÑîÑîÑî×Ï
[¿¼ÑÐ] 348Çóµ÷¼Á +4 СÀÁ³æ²»ÀÁÁË 2026-03-27 5/250 2026-03-27 12:47 by ¹û¹ûÂèßä
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ÇóÇóÁËÊÕÏÂÎÒ°É£ 2026-03-26 4/200 2026-03-27 10:37 by zhshch
[¿¼ÑÐ] 324Çóµ÷¼Á +5 hanamiko 2026-03-26 5/250 2026-03-27 10:33 by wangjy2002
[¿¼ÑÐ] 321Çóµ÷¼Á +6 wasdssaa 2026-03-26 6/300 2026-03-26 20:57 by sanrepian
[¿¼ÑÐ] 085601Çóµ÷¼Á×Ü·Ö293Ó¢Ò»Êý¶þ +4 ¸ÖÌú´óÅÚ 2026-03-24 4/200 2026-03-26 16:28 by dick_runner
[¿¼ÑÐ] ²ÄÁÏ¿ÆÑ§Ó빤³Ì 317Çóµ÷¼Á +4 JKSOIID 2026-03-26 4/200 2026-03-26 15:58 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ÉúÎïѧѧ˶Çóµ÷¼Á +7 СÑò˯×ÅÁË? 2026-03-23 10/500 2026-03-25 02:24 by Çå·ç·÷Ñï¡£ m
[¿¼ÑÐ] 336»¯¹¤µ÷¼Á +4 Íõ´ó̹1 2026-03-23 5/250 2026-03-23 18:32 by allen-yin
[¿¼ÑÐ] 328Çóµ÷¼Á +4 LHHL66 2026-03-23 4/200 2026-03-23 14:55 by lbsjt
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û