further mathematics topic 3 introduction of the regression 新

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1、Topic3:Introductiontoregression回归分析3.2Response(dependent)andexplanatory(independent)variables反应变量和解释变量序号音标英文中文出处1[rɪˈgreʃn]regression（统计学）回归;衰退;P1102[rɪˈspɒns]response反应;回答，答复;P1103[dɪˈpendənt]dependent依靠的;依赖的;取决于…的P1104[ɪkˈsplænətri]explanatory解释的;说明的;解释性;P1105[ˌɪndɪˈpendənt]independent自

2、主的;不相关连的P1106[əˈprəʊpriət]appropriate适当的;恰当的;合适的;P1107[aɪˈdentɪfaɪ]identify识别，认出;确定8[ˈhændikæp]handicap障碍;缺陷;给弱者增加的杆数P111T2序号音标英文中文出处9[ɪnˈtenʃn]intention意图，目的;意向P111T310[kənˈsʌmpʃn]consumption消费;耗尽;[医学]消耗性疾病;P111T411[ˈstɪmjələs]stimulus刺激物;刺激因素;激法物;P111T512[ˌpi:diəˈtrɪʃn]paediatrician儿科医师

3、;P111T6重点内容：两个名称的理解Ifthevaluesofonevariable‘respond’tothevaluesofanothervariable,thentheformervariableisreferredtoastheresponse(dependent)variable（反应变量）（是一个表现）Soanexplanatory(independent)variableisafactorthatinfluencestheresponse(dependent)variable.（解释变量）是一个主因，影响其他变量的源头。例子来说明：Inthecasewhe

4、retheagesofcompanyemployees（公司员工年龄）arecomparedwiththeirannualsalaries（年薪）,youmightreasonablyexpectthattheannualsalaryofanemployeewoulddependontheperson’sage.Age和salaryAge影响了salaryAge是explanatoryvariableSalary是responsevariable方法：（1）先找到其中的两个变量（2）然后判断谁影响了谁（3）主因就是解释变量Inthiscase,theageoftheemp

5、loyeeistheexplanatoryvariableandthesalaryoftheemployeeistheresponsevariable.另一个例子Considerthecasewhereastudycomparedtheheightsofcompanyemployeesagainsttheirannualsalaries.（身高和年薪）Commonsensewouldsuggestthattheheightofacompanyemployeewouldnotrespondtotheperson’sannualsalarynorwouldtheannuals

6、alaryofacompanyemployeerespondtotheperson’sheight.（两者互不影响）Inthiscase,itisnotappropriatetodesignate（指明）onevariableasexplanatoryandoneasresponse.一种表示的方法Theexplanatoryvariableisafactorthatinfluencestheresponsevariable.Whendisplayingdataonagraphplacetheexplanatoryvariableonthehorizontalaxis（横

7、轴解释变量）andtheresponsevariableontheverticalaxis.（纵轴反应变量）ExampleForeachofthefollowingpairsofvariables,identifytheexplanatory(independent)variableandtheresponse(dependent)variable.Ifitisnotpossibletoidentifythis,thenwrite‘notappropriate’.aThenumberofvisitorsatalocalswim