分别计算六组数的标准差
\u6c42\u52a9\uff0c\u8c01\u5e2e\u6211\u7b97\u4e0b\u5747\u6570\u00b1\u6807\u51c6\u5dee\u4f60\u597d\uff0c\u8ba1\u7b97\u4e2d\u2014\u2014
\u7b2c\u4e00\u7ec4:\u5e73\u5747\u6570\uff1a19.8 \u6807\u51c6\u5dee12.91
\u7b2c\u4e8c\u7ec4\uff1a\u5e73\u5747\u6570\uff1a6.78 \u6807\u51c6\u5dee2.55
\u7b2c\u4e09\u7ec4\uff1a\u5e73\u5747\u657018.4
\u7b2c\u56db\u7ec4\uff1a\u5e73\u5747\u6570\uff1a37.83
绛旓細绗竴缁勬爣鍑嗗樊涓2.40锛涚浜岀粍鏍囧噯宸负2.41锛涚涓夌粍鏍囧噯宸负2.52锛涚鍥涚粍鏍囧噯宸负2.34锛涚浜旂粍鏍囧噯宸负3.0锛绗叚缁勬爣鍑嗗樊涓1.4銆傚湪excel琛ㄦ牸涓娇鐢⊿TDEV鍑芥暟鍙互鐩存帴绠楁爣鍑嗗樊锛屽緢蹇
绛旓細璁＄畻鏍囧噯宸殑姝ラ閫氬父鏈夊洓姝ワ細璁＄畻骞冲潎鍊笺佽绠楁柟宸佽绠楀钩鍧囨柟宸佽绠楁爣鍑嗗樊銆備緥濡傦紝瀵逛簬涓涓湁鍏釜鏁扮殑鏁伴泦2,3,4,5,6,8锛屽叾鏍囧噯宸彲閫氳繃浠ヤ笅姝ラ璁＄畻锛氳绠楀钩鍧囧硷細(2 + 3 + 4 + 5+ 6 + 8)/6 = 30 /6 = 5 璁＄畻鏂瑰樊锛(2 鈥 5)^2 = (-3)^2= 9(3 鈥 5)^2 = (-2)...
绛旓細鏍囧噯宸畾涔夊涓嬶細锛屽彉寮傜郴鏁板畾涔夊涓嬶細鍙樺紓绯绘暟 C路V =锛 鏍囧噯鍋忓樊蟽梅 骞冲潎鍊嘉硷級脳 100%涓婅堪6涓暟鎹緷娆″搴擷1鍒癤6锛屾寜涓婅堪鍏紡璁＄畻鏍囧噯宸拰鍙樺紓绯绘暟鍚銆傚弬鑰冿細鏍囧噯宸甴ttp://baike.baidu.com/view/78339.htm 鍙樺紓绯绘暟http://baike.baidu.com/view/356141.htm ...
绛旓細绗竴缁勶細鍧囧19.8358209 鏂瑰樊164.5635459 鏍囧噯宸12.8282324 绗2缁勶細鍧囧6.7761194 鏂瑰樊6.4188150 鏍囧噯宸2.5335380 绗3缁勶細1.922 1.1689 绗4缁勶細3.2349 1.0543 绗簲缁勶細6.493 1.7481 绗6缁勶細3.092 0.9563
绛旓細(9 + 4 + 0 + 0+ 1 + 9)/6 = 24/6 = 4 锛4锛夎绠楁爣鍑嗗樊锛氣垰4 = 2 闂浜岋細鏍囧噯宸庝箞绠 鎵鏈夋暟鍑忓幓鍏跺钩鍧囧肩殑骞虫彛鍜岋紝鎵寰楃粨鏋滈櫎浠ヨ缁勬暟涔嬩釜鏁帮紙鎴栦釜鏁板噺涓锛屽嵆鍙樺紓鏁)锛屽啀鎶婃墍寰楀煎紑鏍瑰彿锛屾墍寰椾箣鏁板氨鏄繖缁勬暟鎹殑鏍囧噯宸傞棶棰樹笁锛氬浣曠敤word璁＄畻鏍囧噯宸 1銆丼TDEV(number...
绛旓細锛1锛夎绠楀钩鍧囧 锛2锛璁＄畻鏂瑰樊 锛3锛夎绠楀钩鍧囨柟宸 锛4锛璁＄畻鏍囧噯宸 渚嬪锛屽浜庝竴涓湁鍏釜鏁扮殑鏁伴泦2,3,4,5,6,8锛屽叾鏍囧噯宸彲閫氳繃浠ヤ笅姝ラ璁＄畻锛氾紙1锛夎绠楀钩鍧囧硷細(2 + 3 + 4 + 5+ 6 + 8)/6 = 30 /6 = 5 锛2锛夎绠楁柟宸細(2 5)^2 = (-3)^2= 9 (3 5)^2 = (-2)^...
绛旓細璁＄畻鏍囧噯宸鐨勬楠ら氬父鏈夊洓姝ワ細锛1锛夎绠楀钩鍧囧 锛2锛璁＄畻鏂瑰樊 锛3锛夎绠楀钩鍧囨柟宸 锛4锛夎绠楁爣鍑嗗樊 渚嬪锛屽浜庝竴涓湁鍏釜鏁扮殑鏁伴泦2,3,4,5,6,8锛屽叾鏍囧噯宸彲閫氳繃浠ヤ笅姝ラ璁＄畻锛氾紙1锛夎绠楀钩鍧囧硷細(2 + 3 + 4 + 5+ 6 + 8)/6 = 30 /6 = 5 锛2锛夎绠楁柟宸細(2 C 5)^2 = (-3)...
绛旓細1銆佷竴璁＄畻鏂瑰樊鎵撳紑EXCELl锛屽湪琛ㄦ牸涓緭鍏ラ渶瑕璁＄畻鏂瑰樊鐨鏁板硷紝鐐瑰嚮鈥渇x鈥濅簩閫変腑闇瑕佽绠楁柟宸暟鍊肩殑鍗曞厓鏍硷紝鐐瑰嚮鈥渇x鈥濅笁鍦ㄥ脊鍑烘潵鐨勫璇濇閲岋紝鎼滅储鍑芥暟鈥淰ARPA鈥濓紝鐐瑰嚮杞埌锛岀偣鍑诲彸涓嬭鐨勭‘璁ゅ洓鍦ㄥ嚱鏁板弬鏁扮殑Value锛鏍囧噯宸excel鍙互鐢⊿TDEV鍑芥暟1棣栧厛鎵撳紑涓涓狤xcel鐨勬枃浠讹紝杈撳叆涓涓畝鍗曠殑琛ㄦ牸锛屾瘮濡傚鐢熸垚缁╄〃...
绛旓細濡傚浘锛氱1缁勬暟鎹鐨勬爣鍑嗗樊鏄3.6978銆傜鍏锛氭嫋鍔ㄥ～鍏呮焺鍚戜笅蹇熷～鍏呫傚鍥炬墍绀猴細鍒嗘瀽锛氭渶鍚庝竴缁勬暟鎹殑鏍囧噯宸渶澶э紝鎵浠鏁板瓧鐨绂绘暎绋嬪害鏈澶с傚皬缁擄細骞冲潎鍊兼槸鎻忚堪鏁版嵁鐨勫钩鍧囧ぇ灏忥紝鏍囧噯宸槸鎻忚堪鏁版嵁鐨勭鏁ｇ▼搴︺傛湁浜涙暟鎹殑骞冲潎鍊肩浉鍚岋紝浣嗘爣鍑嗗樊涓嶄竴瀹氱浉鍚屻傚鍥撅細骞冲潎鍊肩浉鍚岋紝浣嗘爣鍑嗗樊涓嶅悓 ...
绛旓細鎵鏈夋暟鍑忓幓鍏跺钩鍧囧肩殑骞虫柟鍜岋紝鎵寰楃粨鏋滈櫎浠ヨ缁勬暟涔嬩釜鏁帮紙鎴栦釜鏁板噺涓锛屽嵆鍙樺紓鏁帮級锛屽啀鎶婃墍寰楀煎紑鏍瑰彿锛屾墍寰椾箣鏁板氨鏄繖缁勬暟鎹鐨勬爣鍑嗗樊銆傛柟宸 锛 锛圶1锛峹锛夛季2 锛 锛圶2锛峹锛夛季2 锛 锛圶3锛峹锛夛季2 锛 锛庯紟锛庯紜 锛圶n锛峹锛夛季2 锛 X1锛2 锛 X2锛2 锛 X3锛2 锛 锛庯紟锛庯紜 Xn锛2 ...
