第11章相关分析与回归分析（课件）《统计基础知识》同步教学江南大学出版社

第11章 相关分析与回归分析 目录 11.1、变量间的关系 11.2、相关系数的测度 11.3、简单线性回归模型 11.4、回归模型的应用 11.1、变量间的关系 1 、函数关系和相关关系 Y=f(x) 变量之间不确定性的依存关系，我们称之为相关关系. 2、相关关系的种类 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 6.89250773223656 8.2032815444678 9.03075408854789 8.43111281356332 10.2277265904203 10.53997779291 12.0773341620573 11.437823403334 6 13.7211920794036 14.6941101092224 15.5876651577914 15.5766050298384 15.5713111130393 17.9464031774665 18.6934462520134 18.9568494864866 19.0857345294425 20.129844423911 21.0801728727566 22.8139840373952 23.408730094737 24.4656760550224 23.9879942182718 25.0047494837224 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 20.2925077322366 20.0032815444678 19.2307540885479 17.0311128135628 17.2277265904198 15.93997779291 15.8773341620573 13.6378234033345 14 .3211920794036 13.6941101092224 12.9876651577914 11.3766050298384 9.77131111303929 10.5464031774665 9.69344625201343 8.35684948648658 6.88573452944239 6.32984442391101 5.68017287275726 5.81398403739496 4.80873009473788 4.265676055023 2.18799421827187 1.60474948372296 28 8 25 22 25 27 13 39 26 47 41 30 48 24 44 33 14 25 24 34 48 46 8 48 21 5 36 20 14 32 40 33 25 13 27 41 39 49 39 29 24 48 36 46 45 13 11 35 46 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5.0435574057637 8.62664039734317 5.37073518014199 8.62239018319274 16.1900914303187 18.3570096569091 17.637579629936 20.6972 520974951 26.4476143193648 32.5635449513809 35.274169360746 45.2766818418236 52.3373877126698 56.1565541237542 60.7291000619431 67.4731398647107 76.7278566950649 85.1560925912447 90.6445315649634 100.746365584066 111.452450131595 119.742179738139 132.648453404056 138.411040895015 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5.8 6.6 7.4 8.2 9 9.8 10.6 11.4 12.2 13 13.8 14.6 15.4 16.2 17 17.8 18.6 19.4 20.2 21 21.8 22.6 23.4 24 .2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 19.2 18.4 17.6 16.8 16 15.2 14.4 13