ľ½á¹¹½¨ÖþÖ÷Òª·ÖΪÈý¸öÌåϵ£¬ÖØÐÍľ½á¹¹¡¢ÇáÐÍľ½á¹¹¡¢»ìÏýľ½á¹¹£¬ÆäÖÐÖØÐÍľ½á¹¹ÓÖ¿ÉÒÔ·ÖΪÁºÖùʽľ½á¹¹¡¢CLTľ½á¹¹¡¢¾®¸Éʽľ½á¹¹¡£
Ê×ÏÈÎÒÃÇÀ´Á˽âÒ»ÏÂÖØÐÍľ½á¹¹¡£
1.ÁºÖùʽľ½á¹¹£ºÁºÖùʽľ½á¹¹ÊÇÓÉ¿ç¾à½Ï´óµÄÁº¡¢ÖùΪÖ÷Òª´«Á¦ÌåϵµÄľ½á¹¹½¨Öþ£¬Í¨³£½ÓÄɽººÏľÖÊÁÏÖÆ×÷Áº¡¢Öù¡¢éÝÌõ£¬ÓýðÊô½ô¹Ì¼þÀ´Á´½Ó¹¹¼þ¸÷²¿·Ö¡£ ÆäÖÊÁÏ×ÔÖØÇᣬ½öΪͬÌå»ý»ìÄýÍÁÖØÁ¿µÄ1/5µ½1/4£¬Í¬Ê±¿ÉËÜÐÔ¼°Áé»îÐÔÇ¿£¬¿Éƾ¾Ý²î±ðµÄ¿Õ¼ä¶¨Öƶà±äµÄÔìÐÍ¡£
CLTľ½á¹¹È«³ÆÕý½»½ººÏľ£¬½ÓÄÉÒ¤¸ÉµÄÓÅѡɼľ¡¢ËÉľ°å²ÄµÈÕý½»µþ·Å£¬Ê¹ÓøßÇ¿¶ÈÖÊÁϽººÏ³ÉÐÍ£¬Õý½»½á¹¹Ê¹ÖÊÁÏÔÚ¸÷¸öÆ«Ïò¾ßÓнÏÇ¿µÄÎȶ¨ÐÔ£¬ÊÇ¿ÉÌæ´ú»ìÄýÍÁµÄÐÂÐ͵Í̼¹¤³Ìľ²úÆ·¡£
Ëü¼ÈÄÜÒÔ³ÐÖØǽ½¨Ôì¿ò¼Ü¼ôÁ¦Ç½ºâÓҲ¿ÉÒÔ×÷ΪÁºÖùʽľ½á¹¹»òÕßÆäËû½á¹¹½¨ÖþµÄÌî³äǽÌ壬ÔÚÍâÑó¹ã·ºÓ¦ÓÃÓÚÖи߲㽨ÖþÖС£
¾®¸Éʽľ½á¹¹ÊÇÒÔ·½Ä¾½ººÏľ»òÔľÖÆ×÷µÄ±ÚÌå×÷Ϊ³ÐÖؽṹǽ£¬¾®¸Éʽ²ã²ãµþ¼Ó£¬Á¬½Ó²¿Î»½ÓÄÉé¾Ã®ÇпÚÏ໥ҧºÏ£¬ÐγÉÎȶ¨ÍêÕûµÄ¹¹¼Ü¡£
ÇáÐÍ×°Åäʽľ½á¹¹ÊÇÖ¸ÔÚ¹¤³§¼Ó¹¤ÖÆ×÷ǽÌ塢¥ÃæºÍÎÝÃæµÈÔ¤ÖÆʽµ¥Î»£¬µ½ÏÖ³¡½øÐмòµ¥µÄ×é×°£¬²¢ÒÔ½ðÊô¼þÀιÌÁ¬½Ó£¬¹ã·ºÓ¦ÓÃÓÚÌØÉ«ÃñËÞ¡¢±ðÊû¡¢ÃÀÀöÏç´å½¨ÉèµÈÈý²ãÒÔÏµÄľ½á¹¹½¨ÖþÖС£
³ý´ËÖ®Í⣬ÇáÐͽÚÄÜľǽģ¿éÒ²¿ÉÒÔÓë¸Ö»ì½á¹¹»ìÏýʹÓã¬Ó¦ÓÃÓÚ½¨ÖþµÄÄÚÍâǽ°åÖС£
»ìÏýľ½á¹¹½¨ÖþÊÇÔÚ½¨ÖþÖн«Ä¾½á¹¹ºÍÆäËû½á¹¹Ìåϵ£¨Èç»ìÄýÍÁ½á¹¹¡¢¸Ö½á¹¹£©Ïà½áºÏµÄÒ»ÖÖ½¨ÖþÐÎʽ¡£
ÕâÖÖ½¨ÖþÐÎʽͨ³£ÌåÏÖΪϲ¿Îª¸Ö½î»ìÄýÍÁ»ò¸Ö½á¹¹£¬Éϲ¿ÎªÇáÐÍľ½á¹¹¡£ÔÚÅ·ÃÀ¹ú¼Ò£¬Ï²¿µÄ»ìÄýÍÁ½á¹¹²¿·Ö³£ÓÃÓÚÉÌÒµºÍ°ì¹«µÈÓÃ;£¬¶øÉϲ¿Ä¾½á¹¹²¿·ÖÔò¿ÉÓÃ×÷סլ¡£Ä¾½á¹¹»ìÏý½¨Öþ¾ßÓÐʵÓᢸßЧºÍ¾¼ÃµÈÓŵ㡣ƾ¾ÝÖйú¹æ·¶£¬ÕâÖÖ»ìÏý½¨ÖþÈç¹û½ÓÄÉÈý²ã»ìÄýÍÁ¼ÓÈý²ãľ½á¹¹¿ÉÒÔ×î¸ß½¨µ½Áù²ã¡£
ËزÄØͼƬ£¨8868ÌåÓýľÎÝ¡¢ÍøÂ磬ÈçÓÐÇÖȨÁªÏµÉ¾³ý)