Question

5£®ÈçͼΪijµ¥»ùÒòÒÅ´«²¡µÄϵÆ×ͼ£¬Ö²¡»ùÒòΪA»òÕßa£¬Çë»Ø´ðÏÂÁÐÎÊÌ⣮
£¨1£©¸Ã²¡µÄÖ²¡»ùÒòÔÚ³£È¾É«ÌåÉÏ£¬ÊÇÒþ£¨ÏÔ»òÒþ£©ÐÔÒÅ´«²¡£®
£¨2£©¢ñ₁Óë¢ò₂»ùÒòÐÍÏàͬµÄ¸ÅÂÊΪ100%£®
£¨3£©¢ò₂µÄ»ùÒòÐÍÊÇAa£»¢ó₂µÄ»ùÒòÐÍ¿ÉÄÜÊÇAA»òAa£¬ÎªÔÓºÏ×ӵĸÅÂÊÊÇ$\frac{2}{3}$£®
£¨4£©¢ó₂ÈôÓëһЯ´øÖ²¡»ùÒòµÄÅ®×Ó½á»é£¬Éú³ö»¼²¡º¢×ӵĸÅÂÊÊÇ$\frac{1}{6}$£¬Éú³ö»¼²¡Äк¢µÄ¸ÅÂÊÓÖÊǶàÉÙ$\frac{1}{12}$£®

Answer 1

·ÖÎö ¸ù¾ÝÌâÒâºÍͼʾ·ÖÎö¿ÉÖª£º¢ò-1ΪŮÐÔ»¼Õߣ¬ÆäË«Ç׶¼Õý³££¬Ôò´ËÒÅ´«²¡Îª³£È¾É«ÌåÒþÐÔÒÅ´«£¬¢ò-1ºÍ¢ó-1Ϊ»¼Õߣ¬»ùÒòÐÍΪaa£¬ËûÃǵÄË«Ç׶¼Õý³££¬ÔòËûÃǵÄË«Ç×¾ùΪÔÓºÏ×Ó£¬»ùÒòÐ;ùΪAa£®

½â´ð ½â£º£¨1£©¸ù¾ÝÌâÒâ·ÖÎöÒÑÖª¸Ã²¡Êdz£È¾É«ÌåÒþÐÔÒÅ´«²¡£®
£¨2£©ÓÉÓÚ¢ò₁Óë¢ó₁¶¼Îª»¼Õߣ¬ËùÒÔ¢ñ₁Óë¢ò₂µÄ»ùÒòÐͶ¼ÊÇAa£¬Òò´Ë£¬ÏàͬµÄ¸ÅÂÊΪ100%£®
£¨3£©ÓÉÓÚ¢ò₂Õý³£¶ø¢ó₁Ϊ»¼Õߣ¬ËùÒÔ¢ò₂µÄ»ùÒòÐÍÊÇAa£®ÓÉÓÚ¢ó₁Ϊ»¼Õߣ¬ËùÒÔ¢ò₃µÄ»ùÒòÐÍÒ²ÊÇAa£¬Òò´Ë£¬¢ó₂µÄ»ùÒòÐÍ¿ÉÄÜÊÇAA»òAa£¬ÎªÔÓºÏ×ӵĸÅÂÊÊÇ$\frac{2}{3}$£®
£¨4£©ÓÉÓÚ¢ó₂µÄ»ùÒòÐÍ¿ÉÄÜÊÇAA»òAa£¬ËùÒÔ¢ó₂ÈôÓëһЯ´øÖ²¡»ùÒòµÄÅ®×Ó½á»é£¬Éú³ö»¼²¡º¢×ӵĸÅÂÊÊÇ$\frac{2}{3}$¡Á$\frac{1}{4}$=$\frac{1}{6}$£¬Éú³ö»¼²¡Äк¢µÄ¸ÅÂÊÊÇ$\frac{1}{6}$¡Á$\frac{1}{2}$=$\frac{1}{12}$£®
¹Ê´ð°¸Îª£º
£¨1£©Òþ
£¨2£©100%
£¨3£©Aa      AA»òAa       $\frac{2}{3}$
£¨4£©$\frac{1}{6}$          $\frac{1}{12}$

µãÆÀ ±¾Ìâ½áºÏϵÆ×ͼ£¬¿¼²éÈËÀàÒÅ´«²¡¼°°éÐÔÒÅ´«£¬ÒªÇó¿¼Éúʶ¼ÇÈËÀàÒÅ´«²¡µÄÌص㣬ÄÜÀûÓÿھ÷£¬¸ù¾ÝϵÆ×ͼÅжÏÒÅ´«²¡µÄÒÅ´«·½Ê½£¬½ø¶øÅжÏÏàÓ¦¸öÌåµÄ»ùÒòÐÍ£»Í¬Ê±ÄÜÀûÓÃÖð¶Ô·ÖÎö·¨½øÐмòµ¥µÄ¸ÅÂʼÆË㣮