Question

9£®Í㶹×ÓÒ¶»ÆÉ«£¨Y£©ÓëÂÌÉ«£¨y£©ÎªÒ»¶ÔµÈλ»ùÒò¿ØÖÆ£¬ÏÖ½«×ÓÒ¶»ÆÉ«Í㶹Óë×ÓÒ¶ÂÌÉ«Í㶹ÔÓ½»£¬F₁Ϊ»ÆÉ«£®F₁×Ô»¨ÊÜ·Ûºó½á³öF₂´úÖÖ×Ó¹²8003Á££¬ÆäÖÐ×ÓÒ¶»ÆÉ«Í㶹ÖÖ×Ó6002Á££¬×ÓÒ¶ÂÌÉ«ÖÖ×ÓµÄ2001Á££®ÊÔ·ÖÎö»Ø´ð£º
£¨1£©×ÓÒ¶µÄÏÔÐÔÐÔ״Ϊ»ÆÉ«£»
£¨2£©Ç×±¾µÄ»ùÒòÐÍΪYYºÍyy£¨Á½Ïî¿É»»Ë³Ðò£©£®
£¨3£©F₁´ú²úÉúÅä×ӵĻùÒòÐÍÀàÐÍÊÇYy£¬Æä±ÈÀýÊÇ1£º1£®
£¨4£©F₂µÄ±íÏÖÐÍÊÇ»ÆÉ«×ÓÒ¶ºÍÂÌÉ«×ÓÒ¶£¨Ç°Á½Ïî¿É»»Ë³Ðò£©£¬ÆäÖд¿ºÏÌåÕ¼µÄ±ÈÀýÊÇ$\frac{1}{2}$£»£¨$\frac{1}{2}$¡«»ò $\frac{1}{4}$»ò $\frac{3}{4}$£©
£¨5£©F₂µÄ»ùÒòÐÍÊÇA£®£¨A£®YY Yy yy   B£®YY yy£©
£¨6£©ÉÏÊöÒÅ´«ÏÖÏó×ñÑ­»ùÒòµÄ·ÖÀ루×ÔÓÉ×éºÏ»ò·ÖÀ룩¶¨ÂÉ£®

Answer 1

·ÖÎö ÓÉÌâÒâÖª£¬É«×ÓÒ¶Í㶹ÓëÂÌÉ«×ÓÒ¶Í㶹ÔÓ½»£¬F₁Ϊ»ÆÉ«×ÓÒ¶£¬ËµÃ÷»ÆÉ«×ÓÒ¶ÊÇÏÔÐÔÐÔ×´£¬ÂÌÉ«×ÓÒ¶ÊÇÒþÐÔÐÔ×´£¬F₁×Ô½»£¬²úÉúµÄF₂ÖлᷢÉúÐÔ×´·ÖÀ룬ÇÒ·ÖÀë±ÈÊÇ3£º1£®

½â´ð ½â£º£¨1£©×ÓÒ¶»ÆÉ«Óë×ÓÒ¶ÂÌÉ«ÔÓ½»£¬F₁Ϊ»ÆÉ«£¬ËµÃ÷»ÆÉ«¶ÔÂÌÉ«ÊÇÏÔÐÔÐÔ×´£®
£¨2£©Ç×±¾ÊÇ×ÓÒ¶»ÆÉ«Í㶹Óë×ÓÒ¶ÂÌÉ«Í㶹£¬ÓÖÒòΪÍ㶹×ÓÒ¶»ÆÉ«£¨Y£©ÓëÂÌÉ«£¨y£©ÎªÒ»¶ÔµÈλ»ùÒò¿ØÖÆ£¬Òò´ËÇ×±¾µÄ»ùÒòÐÍΪYY£¨»ÆÉ«×ÓÒ¶£©¡¢yy£¨ÂÌÉ«×ÓÒ¶£©£®
£¨3£©ÓÉÌâÒâÖª£¬F₁´ú»ùÒòÐÍΪYy£¬F₁´ú²úÉúµÄÅä×ÓµÄÀàÐͼ°±ÈÀýÊÇY£ºy=1£º1£®
£¨4£©F₁×Ô»¨Êܾ«ºó½á³öF₂£¬F₂»á·¢ÉúÐÔ×´·ÖÀ룬Ҷ»ÆÉ«ÖÖ×Ó£¨YY¡¢Yy£©£ºÂÌÉ«×ÓÒ¶ÖÖ×Ó£¨yy£©=3£º1£®ÆäÖд¿ºÏÌ壨YY¡¢yy£©Õ¼$\frac{1+1}{4}=\frac{1}{2}$£®
£¨5£©Yy¡ÁYy¡úYY£ºYy£ºyy=1£º2£º1£®
£¨6£©Í㶹×ÓÒ¶»ÆÉ«£¨Y£©ÓëÂÌÉ«£¨y£©ÎªÒ»¶ÔµÈλ»ùÒò¿ØÖÆ£¬Òò´Ë¸ÃÒÅ´«ÏÖÏó×ñÑ­·ÖÀ붨ÂÉ£®
¹Ê´ð°¸Îª£º
£¨1£©»ÆÉ«
£¨2£©YY£¬yy £¨Á½Ïî¿É»»Ë³Ðò£©
£¨3£©Y  y    1£º1
£¨4£©»ÆÉ«×ÓÒ¶ÂÌÉ«×ÓÒ¶£¨Ç°Á½Ïî¿É»»Ë³Ðò£©1/2
£¨5£©A
£¨6£©·ÖÀë

µãÆÀ ±¾Ì⿼²é»ùÒò·ÖÀ붨ÂɵÄÏà¹Ø֪ʶ£¬ÒâÔÚ¿¼²éѧÉúµÄʶͼÄÜÁ¦ºÍÅжÏÄÜÁ¦£¬ÔËÓÃËùѧ֪ʶ×ۺϷÖÎöÎÊÌâºÍ½â¾öÎÊÌâµÄÄÜÁ¦£®