²é¿´: 936  |  »Ø¸´: 6
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

smf2828

ľ³æ (ÕýʽдÊÖ)

[½»Á÷] ¡¾ÌÖÂÛ¡¿Ò»µÀ¸ÅÂÊÌâÄ¿ ÒÑÓÐ3È˲ÎÓë

ij¹ñ̨ÓÐ4λÊÛ»õÈËԱͬʱ¹¤×÷£¬ÓÐÁ½Ì¨Ì¨³Ó¹©ËûÃÇʹÓá£ÒÑ֪ÿλÊÛ»õÈËÔ±ÔÚ8СʱÄÚ¶¼ÐèÒªÓÐ2¸öСʱʹÓĄ̃³Ó¡£Çǫ́³Ó²»¹»Ê¹ÓõĸÅÂÊ¡£

Ó¦¸ÃÓÃÀëÉ¢ÐÍËæ»ú±äÁ¿ÖеĶþÏî·Ö²¼À´×ö£¬µ«ÎÒ²»»á¡£¡£¡£¡£¡£¡£

Çë´óÏÀ°ïæ
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

lizh714285

½ð³æ (СÓÐÃûÆø)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
¿ÉÒÔϸ·Öʱ¼ä¶Î
¶¨Ò壺 »ù±¾¹¤×÷µ¥Ôª¡££¨Ò»¸öʱ¼ä³¤£¬3Ãë¿ÉÒÔ£¬1·ÖÖÓÒ²ÐУ¬ÊÇÒ»¸öÊýѧ³éÏóµÄʱ¼ä¶Î£© ¶¨ÒåΪDt.

ÔÚÿ¸ö»ù±¾¹¤×÷µ¥ÔªÄÚ£¬Ã¿¸öÊÛ»õԱʹÓûò²»Ê¹ÓĄ̃³Ó¡££¨Ö»Ê¹ÓÃÒ»´Î£¬»ò²»Ê¹Óã©¡£Ö»Òª»ù±¾¹¤×÷µ¥ÔªµÄʱ¼ä×ã¹»¶Ì£¬¿ÉÒÔÈÏΪ²»»áÓÐÊÛ»õԱʹÓÃÁ½´ÎÒÔÉÏ£©

ÓÚÊÇ£¬ÔÚÿ¸ö»ù±¾¹¤×÷µ¥ÔªÄÚ£¬Ã¿¸öÊÛ»õԱʹÓĄ̃³ÓµÄ¸ÅÂÊÊÇ2/8=0.25
ÓÚÊÇ¿ÉÇó³öÿ¸ö»ù±¾¹¤×÷µ¥ÔªÄÚ£¬Ì¨³Ó²»¹»Ê¹ÓõĸÅÂÊ¡£
ÓÉÓÚ¸÷¸ö»ù±¾¹¤×÷µ¥Ôª²»Ê§Ò»°ãÐÔ£¬Õâ¸ö¸ÅÂÊÒ²¾ÍÊÇ×ÜÌåÉϵĄ̈³Ó²»¹»Ê¹ÓøÅÂÊ¡£
4Â¥2010-09-16 10:42:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð

xxppyy

ľ³æ (СÓÐÃûÆø)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by smf2828 at 2010-09-15 20:43:57:
ij¹ñ̨ÓÐ4λÊÛ»õÈËԱͬʱ¹¤×÷£¬ÓÐÁ½Ì¨Ì¨³Ó¹©ËûÃÇʹÓá£ÒÑ֪ÿλÊÛ»õÈËÔ±ÔÚ8СʱÄÚ¶¼ÐèÒªÓÐ2¸öСʱʹÓĄ̃³Ó¡£Çǫ́³Ó²»¹»Ê¹ÓõĸÅÂÊ¡£

Ó¦¸ÃÓÃÀëÉ¢ÐÍËæ»ú±äÁ¿ÖеĶþÏî·Ö²¼À´×ö£¬µ«ÎÒ²»»á¡£¡£¡£¡£¡£¡£

Çë´óÏÀ°ïæ

X~B(4,1/4), ËùÇó¸ÅÂÊΪ£º
P=P(x=3)+P(X=4)
2Â¥2010-09-15 23:14:46
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

smf2828

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
Originally posted by xxppyy at 2010-09-15 23:14:46:

X~B(4,1/4), ËùÇó¸ÅÂÊΪ£º
P=P(x=3)+P(X=4)

´ð°¸ÊǶԵĠ µ«¾ßÌåдµÄʱºò X´ú±íʲôʼþÄØ£¿£¿
3Â¥2010-09-16 10:18:10
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

smf2828

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
Originally posted by lizh714285 at 2010-09-16 10:42:20:
¿ÉÒÔϸ·Öʱ¼ä¶Î
¶¨Ò壺 »ù±¾¹¤×÷µ¥Ôª¡££¨Ò»¸öʱ¼ä³¤£¬3Ãë¿ÉÒÔ£¬1·ÖÖÓÒ²ÐУ¬ÊÇÒ»¸öÊýѧ³éÏóµÄʱ¼ä¶Î£© ¶¨ÒåΪDt.

ÔÚÿ¸ö»ù±¾¹¤×÷µ¥ÔªÄÚ£¬Ã¿¸öÊÛ»õԱʹÓûò²»Ê¹ÓĄ̃³Ó¡££¨Ö»Ê¹ÓÃÒ»´Î£¬»ò²»Ê¹Óã©¡£Ö»Òª»ù±¾¹¤×÷ ...

»¹ÊÇû˵X´ú±íʲôʼþ°¡

P(X=3)´ú±íµÄÊÇʲôʼþµÄ¸ÅÂÊÄØ

P(X=4)´ú±íµÄÊÇʲôʼþµÄ¸ÅÂÊÄØ
5Â¥2010-09-16 11:00:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 286Çóµ÷¼Á +10 Faune 2026-03-21 10/500 2026-03-21 23:34 by 314126402
[¿¼ÑÐ] 280Çóµ÷¼Á +11 ¹¾ààÏþÏþ 2026-03-18 12/600 2026-03-21 22:40 by ACS Nano¡ª¡ª
[¿¼ÑÐ] ³õÊÔ 317 +7 °ëÀ­Ô±û 2026-03-20 7/350 2026-03-21 22:26 by peike
[¿¼ÑÐ] ÇóÖú +5 ÃÎÀïµÄÎÞÑÔ 2026-03-21 6/300 2026-03-21 17:51 by ѧԱ8dgXkO
[¿¼ÑÐ] 278Çóµ÷¼Á +9 ÑÌ»ðÏÈÓÚ´º 2026-03-17 9/450 2026-03-21 17:47 by ѧԱ8dgXkO
[¿¼ÑÐ] ²ÄÁÏ 271Çóµ÷¼Á +5 Õ¹ÐÅÔÃ_ 2026-03-21 5/250 2026-03-21 17:29 by ѧԱ8dgXkO
[¿¼ÑÐ] »úеר˶299Çóµ÷¼ÁÖÁ²ÄÁÏ +3 kkcoco25 2026-03-16 4/200 2026-03-21 03:52 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬327·Ö£¬²ÄÁÏÓ뻯¹¤085600 +9 Ncdx123456 2026-03-19 9/450 2026-03-20 23:41 by lovewei0727
[¿¼ÑÐ] ¿¼Ñе÷¼ÁÇóÑ§Ð£ÍÆ¼ö +3 ²®ÀÖ29 2026-03-18 5/250 2026-03-20 22:59 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤²ÄÁϹ¤³Ìר˶µ÷¼Á +9 Doleres 2026-03-19 9/450 2026-03-20 22:36 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄϽ»Í¨ ר˶ ²ÄÁÏ355 ±¾¿ÆË«·Ç Çóµ÷¼Á +5 Î÷ÄϽ»Í¨×¨²Ä355 2026-03-19 5/250 2026-03-20 21:10 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼Á +3 @taotao 2026-03-20 3/150 2026-03-20 19:35 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤×¨Ë¶µ÷¼Á +7 heming3743 2026-03-16 7/350 2026-03-20 19:31 by zhukairuo
[¿¼ÑÐ] ¹ãÎ÷´óѧ¼ÒÇÝÒÅ´«ÓýÖÖ¿ÎÌâ×é2026Äê˶ʿÕÐÉú£¨½ÓÊÕ¼ÆËã»úרҵµ÷¼Á£© +3 123°¢±ê 2026-03-17 3/150 2026-03-20 15:58 by ·ÉÐÐçù
[¿¼ÑÐ] 288Çóµ÷¼Á£¬Ò»Ö¾Ô¸»ªÄÏÀí¹¤´óѧ071005 +5 ioodiiij 2026-03-17 5/250 2026-03-19 18:22 by zcl123
[¿¼ÑÐ] 085601²ÄÁϹ¤³Ìר˶Çóµ÷¼Á +10 Ľº®mio 2026-03-16 10/500 2026-03-19 15:26 by ¶¡¶¡*
[¿¼ÑÐ] 286Çóµ÷¼Á +6 lemonzzn 2026-03-16 10/500 2026-03-19 14:31 by lemonzzn
[¿¼ÑÐ] ÉúÎïѧ071000 329·ÖÇóµ÷¼Á +3 ÎÒ°®ÉúÎïÉúÎﰮΠ2026-03-17 3/150 2026-03-18 10:12 by macy2011
[¿¼ÑÐ] ²ÄÁϹ¤³Ìר˶274Ò»Ö¾Ô¸211Çóµ÷¼Á +6 Ñ¦ÔÆÅô 2026-03-15 6/300 2026-03-17 11:05 by ѧԱh26Tkc
[¿¼ÑÐ] 0856Çóµ÷¼Á +3 ÁõÃÎ΢ 2026-03-15 3/150 2026-03-16 10:00 by houyaoxu
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û