#1
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ʶԵÔ
¨Ò¡µÒÃҧᨡᨧ¤ÇÒÁ¶Õè¢Í§¢éÍÁÙŪش˹Ö觻ÃÒ¡®ÇèÒÁÕ¢éÍÁÙÅ·ÕèÁÒ¡¡ÇèÒ 49.5 ÍÂÙè 7 ¨Ó¹Ç¹ áÅÐÁÕ¢éÍÁÙÅ·ÕèµèÓ¡ÇèÒ¤Ðá¹¹ 59.5 ÍÂÙè 13 ¨Ó¹Ç¹ ¶éÒ ¤ÇÍÃìä·Åì·Õè 1 = 54.5 ¨§ËÒÇèÒ¢éÍÁÙŪش¹ÕéÁÕ¡Õè¨Ó¹Ç¹ ʧÊÑÂÇèÒ
¨ÐÃÙéä´éÍÂèÒ§äÃÇèÒ 49.5 à»ç¹¢Íºº¹ áÅФÇÒÁ¡ÇéÒ§¢Í§ÍѹµÀÒ¤ªÑé¹à»ç¹à·èÒäÃáÅЪÑé¹ ·ÕèÁÕ49 ÍÂÙèáÅÐ50 ÍÂÙèà»ç¹ªÑé¹·ÕèµÔ´¡Ñ¹ËÃ×ÍäÁè |
#2
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¼ÁÇèÒ¨ÃÔ§æ⨷Âìµéͧ¡Ó˹´´éÇÂÅФÃѺ áµè¶éÒÁÒẺ¹Õé ¼Á¡çâÁàÁä»àŤÃѺ ÇèÒ¡ÇéÒ§ = 10 㹪Ñé¹ 49.5 ¶Ö§ 59.5 à¾ÃÒÐäÁèàªè¹¹Ñ鹨ÐËÒ¤ÇÒÁ¶ÕèäÁäè´é ÇèÒÁÕ¡ÕèµÑÇ
«Ö觼ÁÅͧ¹Óä»á·¹ã¹Êٵô٠ËÒ N = 34 ¤ÃѺ |
#3
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40-49
50-59 60-69 ÁÕºÒ§¤¹à©Å 40 ¨Ó¹Ç¹¤ÃѺ |
#4
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ʧÊѹԴ¹Ö§¤ÃѺÇèÒ â¨·Âì¶Ù¡µéͧÃÖà»ÅèÒ¤ÃѺ à¾ÃÒмÁÇèÒ¨Ò¡ ÁÕ¢éÍÁÙÅ·ÕèÁÒ¡¡ÇèÒ 49.5 ÍÂÙè 7 ¨Ó¹Ç¹ µéͧà»ç¹ ¹éÍ¡ÇèÒ 49.5 ÍÂÙè 7 ¨Ó¹Ç¹
áÅéǹÓä»ãÊèÊÙµÃËÒ¤ÇÍä·Ãì $54.5 = 49.5 + \dfrac{10}{6}({\dfrac{N}{4} - 7}$) áÅШÐä´é N = 40 ¹èФÃѺ 21 ¾ÄȨԡÒ¹ 2010 11:39 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 2 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ tongkub |
#5
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¤ÇÍä·Åì ¤×ÍÍÐäÃËÃͤÃѺ
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#6
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¤ÇÍä·Åì ¤×ͺ͡ÇèÒè¢éÍÁÙÅà»ç¹µÑÇ·Õèà·èÒäËÃè¤ÃѺ áºè§ÍÍ¡à»ç¹ 4 Êèǹ
àªè¹¢éÍÁÙÅ˹Öè§ÁÕ¤ÇÍä·Åì·Õè 1 ËÁÒ¤ÇÒÁÇèÒ¢éÍÁÙŹÑé¹ ÁÕ¢éÍÁÙŨӹǹ 25% ·Õè¹éÍ¡ÇèÒ |
#7
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¢ÍÃÐàÍÕ´¡ÇèÒ¹Õéä´éäËÁ
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#8
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Quarter
1/4, one fourth, or one quarter, equal to 0.25 Quartiles are the three cut points that will divide a dataset into four equal-sized groups. Quartile ¤×Í ¨Ø´áºè§ªØ´¢éÍÁÙÅ˹Öè§ æ ÍÍ¡à»ç¹ 4 Êèǹ àÃÕ¡¨Ø´ Q1 Q2 Q3 ´Ñ§¹Ñé¹ ¨Ø´ Q3 ËÁÒ¶֧ ¡ÅØèÁ¢Í§¢éÍÁÙÅ ¨Ò¡¨Ø´ Q3 ä»·Ò§¢ÇÒ(·Ò§ÁÒ¡) «Öè§à»ç¹¡ÅØèÁ¢éÍÁÙÅ ·ÕèÁÕ¢éÍÁÙÅ·Õè¹éÍ¡ÇèÒ¡ÅØèÁ¹Õé ÍÂÙè 3 ¡ÅØèÁ ·Ó¹Í§à´ÕÂǡѺ Deciles ¨ÐÁÕ ¨Ø´ àÃÕ¡ª×èÍÇèÒ D1 ¶Ö§ D9 áÅÐ Percentiles ¨ÐÁÕ ¨Ø´ àÃÕ¡ª×èÍÇèÒ P1 ¶Ö§ P99 Percentile·Õè99 ¨Ö§ËÁÒ¶֧ ¡ÅØèÁ·Õè 100 [¨Ò¡¨Ø´¹Ñé¹ä»·Ò§¢ÇÒ(ÁÒ¡)] ¨ÐÁÕ ¡ÅØèÁ¢éÍÁÙÅ·Õè¹éÍ¡ÇèÒ ÍÂÙè 99 ¡ÅØèÁ ËҡʧÊÑ ¾Ù´¤Ø¡ѹÍÕ¡¹Ð¤ÃѺ |
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