ÌâÄ¿ÄÚÈÝ
ijũ¿ÆËù·Ö±ð¼Ç¼ÁË12ÔÂ1ÈÕÖÁ12ÔÂ5ÈÕµÄÿÌìÖçҹβîÓëʵÑéÊÒÿÌìÿ100¿ÅÖÖ×ÓÖеķ¢Ñ¿Êý£¬µÃµ½ÈçÏÂ×ÊÁÏ£º
¸ÃÅ©¿ÆËùÈ·¶¨µÄÑо¿·½°¸ÊÇ£ºÏÈ´ÓÕâÎå×éÊý¾ÝÖÐÑ¡³ö2×飬ÓÃʣϵÄ3×éÊý¾ÝÇóÏßÐԻع鷽³Ì£¬ÔÙ¶Ô±»Ñ¡³öµÄ2×éÊý¾Ý½øÐмìÑ飮
(1)ÈôÑ¡È¡µÄÊÇ12ÔÂ1ÈÕÓë12ÔÂ5ÈÕµÄÁ½×éÊý¾Ý£¬Çë¸ù¾Ý12ÔÂ2ÈÕÖÁ12ÔÂ4ÈÕµÄÊý¾Ý£¬Çó³öy¹ØÓÚxµÄÏßÐԻع鷽³Ì£»
(2)ÈôÓÉÏßÐԻع鷽³ÌµÃµ½µÄ¹À¼ÆÊý¾ÝÓëËùÑ¡³öµÄ¼ìÑéÊý¾ÝµÄÎó²î¾ù²»³¬¹ý2¿Å£¬ÔòÈÏΪµÃµ½µÄÏßÐԻع鷽³ÌÊÇ¿É¿¿µÄ£®ÊÔÎÊ(1)ÖÐËùµÃµÄÏßÐԻع鷽³ÌÊÇ·ñ¿É¿¿£¿
´ð°¸£º
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ijũ¿ÆËù¶Ô¶¬¼¾Öçҹβî´óСÓëij·´¼¾½Ú´ó¶¹ÐÂÆ·ÖÖ·¢Ñ¿¶àÉÙÖ®¼äµÄ¹Øϵ½øÐзÖÎöÑо¿£¬ËûÃÇ·Ö±ð¼Ç¼ÁË12ÔÂ1ÈÕÖÁ12ÔÂ5ÈÕµÄÿÌìÖçҹβîÓëʵÑéÊÒÿÌìÿ100¿ÅÖÖ×ÓÖеķ¢Ñ¿Êý£¬µÃµ½ÈçÏÂ×ÊÁÏ£º
¸ÃÅ©¿ÆËùÈ·¶¨µÄÑо¿·½°¸ÊÇ£ºÏÈ´ÓÕâÎå×éÊý¾ÝÖÐÑ¡È¡2×飬ÓÃʣϵÄ3×éÊý¾ÝÇóÏßÐԻع鷽³Ì£¬ÔÙ¶Ô±»Ñ¡È¡µÄ2×éÊý¾Ý½øÐмìÑ飮
£¨1£©ÇóÑ¡È¡µÄ2×éÊý¾ÝÇ¡ºÃÊDz»ÏàÁÚ2ÌìÊý¾ÝµÄ¸ÅÂÊ£»
£¨2£©ÈôÑ¡È¡µÄÊÇ12ÔÂ1ÈÕÓë12ÔÂ5ÈÕµÄÁ½×éÊý¾Ý£¬Çë¸ù¾Ý12ÔÂ2ÈÕÖÁ12ÔÂ4ÈÕµÄÊý¾Ý£¬Çó³öy¹ØÓÚxµÄÏßÐԻع鷽³Ì
=bx+a£»
£¨3£©ÈôÓÉÏßÐԻع鷽³ÌµÃµ½µÄ¹À¼ÆÊý¾ÝÓëËùÑ¡³öµÄ¼ìÑéÊý¾ÝµÄÎó²î¾ù²»³¬¹ý2¿Å£¬ÔòÈÏΪµÃµ½µÄÏßÐԻع鷽³ÌÊÇ¿É¿¿µÄ£¬ÊÔÎÊ£¨2£©ÖÐËùµÃµÄÏßÐԻع鷽³ÌÊÇ·ñ¿É¿¿£¿
ÈÕ ÆÚ | 12ÔÂ1ÈÕ | 12ÔÂ2ÈÕ | 12ÔÂ3ÈÕ | 12ÔÂ4ÈÕ | 12ÔÂ5ÈÕ |
βîx£¨¡ãC£© | 10 | 11 | 13 | 12 | 8 |
·¢Ñ¿Êýy£¨¿Å£© | 23 | 25 | 30 | 26 | 16 |
£¨1£©ÇóÑ¡È¡µÄ2×éÊý¾ÝÇ¡ºÃÊDz»ÏàÁÚ2ÌìÊý¾ÝµÄ¸ÅÂÊ£»
£¨2£©ÈôÑ¡È¡µÄÊÇ12ÔÂ1ÈÕÓë12ÔÂ5ÈÕµÄÁ½×éÊý¾Ý£¬Çë¸ù¾Ý12ÔÂ2ÈÕÖÁ12ÔÂ4ÈÕµÄÊý¾Ý£¬Çó³öy¹ØÓÚxµÄÏßÐԻع鷽³Ì
y |
£¨3£©ÈôÓÉÏßÐԻع鷽³ÌµÃµ½µÄ¹À¼ÆÊý¾ÝÓëËùÑ¡³öµÄ¼ìÑéÊý¾ÝµÄÎó²î¾ù²»³¬¹ý2¿Å£¬ÔòÈÏΪµÃµ½µÄÏßÐԻع鷽³ÌÊÇ¿É¿¿µÄ£¬ÊÔÎÊ£¨2£©ÖÐËùµÃµÄÏßÐԻع鷽³ÌÊÇ·ñ¿É¿¿£¿
ijũ¿ÆËù¶Ô¶¬¼¾Öçҹβî´óСÓëij·´¼¾½Ú´ó¶¹ÐÂÆ·ÖÖ·¢Ñ¿¶àÉÙÖ®¼äµÄ¹Øϵ½øÐзÖÎöÑо¿£¬ËûÃÇ·Ö±ð¼Ç¼ÁË12ÔÂ1ÈÕÖÁ12ÔÂ5ÈÕµÄÿÌìÖçҹβîÓëʵÑéÊÒÿÌìÿ100¿ÅÖÖ×ÓÖеķ¢Ñ¿Êý£¬µÃµ½ÈçÏÂ×ÊÁÏ£º
¸ÃÅ©¿ÆËùÈ·¶¨µÄÑо¿·½°¸ÊÇ£ºÏÈ´ÓÕâÎå×éÊý¾ÝÖÐÑ¡È¡2×飬ÓÃʣϵÄ3×éÊý¾ÝÇóÏßÐԻع鷽³Ì£¬ÔÙ¶Ô±»Ñ¡È¡µÄ2×éÊý¾Ý½øÐмìÑ飮
£¨1£©ÇóÑ¡È¡µÄ2×éÊý¾ÝÇ¡ºÃÊDz»ÏàÁÚ2ÌìÊý¾ÝµÄ¸ÅÂÊ£»
£¨2£©ÈôÑ¡È¡µÄÊÇ12ÔÂ1ÈÕÓë12ÔÂ5ÈÕµÄÁ½×éÊý¾Ý£¬Çë¸ù¾Ý12ÔÂ2ÈÕÖÁ12ÔÂ4ÈÕµÄÊý¾Ý£¬Çó³öy¹ØÓÚxµÄÏßÐԻع鷽³Ì
=bx+a£»
£¨3£©ÈôÓÉÏßÐԻع鷽³ÌµÃµ½µÄ¹À¼ÆÊý¾ÝÓëËùÑ¡³öµÄ¼ìÑéÊý¾ÝµÄÎó²î¾ù²»³¬¹ý2¿Å£¬ÔòÈÏΪµÃµ½µÄÏßÐԻع鷽³ÌÊÇ¿É¿¿µÄ£¬ÊÔÎÊ£¨2£©ÖÐËùµÃµÄÏßÐԻع鷽³ÌÊÇ·ñ¿É¿¿£¿
ÈÕÆÚ | 12ÔÂ1ÈÕ | 12ÔÂ2ÈÕ | 12ÔÂ3ÈÕ | 12ÔÂ4ÈÕ | 12ÔÂ5ÈÕ |
βx£© | 10 | 11 | 13 | 12 | 8 |
·¢Ñ¿Êýy | 23 | 25 | 30 | 26 | 16 |
£¨1£©ÇóÑ¡È¡µÄ2×éÊý¾ÝÇ¡ºÃÊDz»ÏàÁÚ2ÌìÊý¾ÝµÄ¸ÅÂÊ£»
£¨2£©ÈôÑ¡È¡µÄÊÇ12ÔÂ1ÈÕÓë12ÔÂ5ÈÕµÄÁ½×éÊý¾Ý£¬Çë¸ù¾Ý12ÔÂ2ÈÕÖÁ12ÔÂ4ÈÕµÄÊý¾Ý£¬Çó³öy¹ØÓÚxµÄÏßÐԻع鷽³Ì
y |
£¨3£©ÈôÓÉÏßÐԻع鷽³ÌµÃµ½µÄ¹À¼ÆÊý¾ÝÓëËùÑ¡³öµÄ¼ìÑéÊý¾ÝµÄÎó²î¾ù²»³¬¹ý2¿Å£¬ÔòÈÏΪµÃµ½µÄÏßÐԻع鷽³ÌÊÇ¿É¿¿µÄ£¬ÊÔÎÊ£¨2£©ÖÐËùµÃµÄÏßÐԻع鷽³ÌÊÇ·ñ¿É¿¿£¿