·ÖÎö ·ÖÎöϵÆ×ͼ£º¢ò1ºÍ¢ò2¶¼²»»¼¼×²¡£¬µ«ËûÃÇÓÐÒ»¸ö»¼¼×²¡µÄ¶ù×Ó£¨¢ó2£©£¬ËµÃ÷¼×²¡ÊÇÒþÐÔÒÅ´«²¡£¬µ«¢ñ1µÄ¶ù×ÓÕý³££¬ËµÃ÷¼×²¡Êdz£È¾É«ÌåÒþÐÔÒÅ´«²¡£®¢ó3ºÍ¢ó4¶¼²»»¼ÒÒ²¡£¬µ«ËûÃÇÓл¼ÒÒ²¡µÄº¢×Ó£¬ËµÃ÷ÒÒ²¡ÊÇÒþÐÔÒÅ´«²¡£¬µ«¢ó4²»Ð¯´øÒÒÒÅ´«²¡µÄÖ²¡»ùÒò£¬ËµÃ÷ÒÒ²¡ÊÇ°éXȾɫÌåÒþÐÔÒÅ´«²¡£®
½â´ð ½â£º£¨1£©ÓÉÒÔÉÏ·ÖÎö¿ÉÖª£º¼×²¡Êdz£È¾É«ÌåÒþÐÔÒÅ´«²¡£¬ÒÒ²¡ÊÇ°éXȾɫÌåÒþÐÔÒÅ´«²¡£®
£¨2£©¾Ý¢ó2»¼¼×²¡£¬¿ÉÍÆÖª¢ò2µÄ»ùÒòÐÍΪAa£¬¾Ý¢ô2»ò¢ô3»¼ÒÒ²¡¡ú¢ó2µÄ»ùÒòÐÍΪXBXb£¬¿É½øÒ»²½ÍÆÖª¢ò2µÄ»ùÒòÐÍΪXBXb£¬Òò´Ë¢ò2µÄ»ùÒòÐÍΪAaXBXb£®¾Ý¢ó2»¼¼×²¡¡ú¢ò1¡¢¢ò2µÄ»ùÒòÐÍ·Ö±ðΪAa¡¢Aa£¬¿ÉÍÆÖª¢ó3µÄ»ùÒòÐÍΪAA»òAa£¬¾Ý¢ô2»ò¢ô3»¼ÒÒ²¡¡ú¢ó2µÄ»ùÒòÐÍΪXBXb£¬Òò´Ë¢ó3µÄ»ùÒòÐÍΪAAXBXb»òAaXBXb£®
£¨3£©Èô¢ó-3£¨»ùÒòÐÍΪ$\frac{2}{3}$AaXBXb£©ºÍ¢ó-4£¨AaXBY£©ÔÙÉúÒ»¸öº¢×Ó£¬Ôòͬʱ»¼Á½²¡µÄ¸ÅÂÊÊÇ$\frac{2}{3}¡Á\frac{1}{4}¡Á\frac{1}{4}=\frac{1}{24}$£®
£¨4£©´Ó»¼ÒÒ²¡½Ç¶È·ÖÎö£¬¢ó3µÄ»ùÒòÐÍΪXBXb£¬¢ó4µÄ»ùÒòÐÍΪXBY£¬¿ÉÍÆÖª¢ô1µÄ»ùÒòÐͼ°¸ÅÂÊΪ$\frac{1}{2}$XBXB£¬$\frac{1}{2}$XBXb£¬Õý³£ÄÐÐԵĻùÒòÐÍΪXBY£¬¿ÉÍÆÖªºó´ú»¼ÒÒ²¡Äк¢µÄ¼¸ÂÊΪ$\frac{1}{4}¡Á\frac{1}{2}=\frac{1}{8}$£®
£¨5£©ÈËȺÖмײ¡µÄ·¢²¡ÂÊΪ$\frac{1}{10000}$£¬¼´aa»ùÒòÐÍƵÂÊΪ$\frac{1}{10000}$£¬a»ùÒòƵÂÊ=$\frac{1}{100}$£¬A=$\frac{99}{100}$£¬±íÏÖÕý³£µÄÈËÊÇЯ´øÕߵĸÅÂÊ=$\frac{Aa}{AA+Aa}$=$\frac{\frac{1}{100}¡Á\frac{99}{100}¡Á2}{\frac{1}{100}¡Á\frac{99}{100}¡Á2+\frac{99}{100}¡Á\frac{99}{100}}=\frac{2}{101}$£¬Èô¢ó-2£¨»ùÒòÐÍΪaa£©ÓëÒ»¸ö±íÏÖÕý³£µÄÅ®ÐÔ½á»é£¬ÔòÉúÓýÒ»¸ö»¼¼×²¡×ÓÅ®µÄ¸ÅÂÊԼΪ$\frac{2}{101}¡Á\frac{1}{2}=\frac{1}{101}$£®
£¨6£©»éÒö·¨¹æ¶¨£¬Ó¦½ûÖ¹½üÇ×½á»é£¬ÒÔ½µµÍºó´úÒþÐÔÒÅ´«²¡µÄ·¢²¡ÂÊ£®
¹Ê´ð°¸Îª£º
£¨1£©³£ X
£¨2£©AaXBXb AAXBXb»òAaXBXb
£¨3£©$\frac{1}{24}$
£¨4£©$\frac{1}{8}$
£¨5£©$\frac{1}{101}$
£¨6£©½üÇ×
µãÆÀ ±¾Ìâ½áºÏϵÆ×ͼ£¬¿¼²é»ùÒò×ÔÓÉ×éºÏ¶¨Âɼ°Ó¦Ó㬰éÐÔÒÅ´«¼°Ó¦Óã¬Ê×ÏÈÒªÇó¿¼ÉúÄܸù¾ÝϵÆ×ͼºÍÌâ¸ÉÐÅÏ¢¡°¢ó4Я´ø¼×ÒÅ´«²¡µÄÖ²¡»ùÒò£¬µ«²»Ð¯´øÒÒÒÅ´«²¡µÄÖ²¡»ùÒò¡±Åжϼס¢ÒÒµÄÒÅ´«·½Ê½£»Æä´Î¸ù¾Ý±íÏÖÐÍÍƶϳöÏàÓ¦¸öÌåµÄ»ùÒòÐÍ£»ÔÙÀûÓÃÖð¶Ô·ÖÎö·¨½âÌ⣮
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ¢ÙºÍ¢Ú | B£® | ¢ÙºÍ¢Û | C£® | ¢ÚºÍ¢Û | D£® | ¢ÚºÍ¢Ü |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÍÌÊÉϸ°û¼È²ÎÓë·ÇÌØÒìÐÔÃâÒßÓÖ²ÎÓëÌØÒìÐÔÃâÒß | |
B£® | ½¬Ï¸°ûûÓÐʶ±ð×÷Ó㬵«¸Ãϸ°û·ÖÃڵĿ¹ÌåÓÐʶ±ð×÷Óà | |
C£® | ×ÔÉíÃâÒß²¡ºÍ¹ýÃô·´Ó¦²»ÍêÈ«ÊôÓÚÃâÒß¹ýÇ¿ | |
D£® | ÈËÌå³õ´Î½Ó´¥¹ýÃôÔ²»»á²úÉú¹ýÃô·´Ó¦ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ͼÖкá×ø±ê±íʾϸ°ûÄÚȾɫÌåÊýÄ¿µÄ±ä»¯£¬×Ý×ø±ê±íʾʱ¼ä | |
B£® | ͼÖÐCD¶Î·¢ÉúͬԴȾɫÌå·ÖÀ룬EF¶Î·¢Éú·ÇͬԴȾɫÌå×ÔÓÉ×éºÏ | |
C£® | Èô¸Ã¶¯ÎïÕý³£Ìåϸ°ûÄÚȾɫÌåÊýĿΪ2N£¬ÔòEF¶ÎȾɫÌåÊýÒ»¶¨ÎªN | |
D£® | ÈôGH¶Î³öÏֵľ«×ÓΪXYÐÍ£¬ÔòÒ»¶¨ÊÇCD¶Î·ÖÁѲ»Õý³£ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ´Ëϸ°ûÖеĻùÒòaÊÇ»ùÒòÍ»±äµÄ½á¹û | |
B£® | ´Ëϸ°ûÄÚ¹²º¬ÓÐ4ÌõÍÑÑõºËÜÕËáÁ´ | |
C£® | ´Ëϸ°ûµ½ºóÆÚʱ×î¶àº¬ÓÐËĸöȾɫÌå×é | |
D£® | ¸Ã¶¯ÎïÖ»²úÉúAB¡¢aBÁ½ÖÖ±ÈÀýÏàµÈµÄÅä×Ó |
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com