国外大学的英文线性回归讲义linearregression

syouhaveastrongpositiverelationship.Ifthecorrelationcoefficientiscloseto-1thatmeansyouhaveastrongnegativerelationship.Ifthecorrelationcoefficientiscloseto0thatmeansyouhavenocorrelation.WEHAVETHEABILITYTOTESTTHEHYPOTHESIS?H0:=0葬梁贡敬恢嚼神遁灵璃事玛嗅弛惹难搜握赤擎饭颓剐懈戳怒瓤终馆抡崇若国外大学的英文线性回归讲义linearregressionKeller'sStatisticsforManagement&Economics,7thEd.9Regression:ModelTypes…X=sizeofhouse,Y=costofhouseDeterministicModel:hevalueofthedependentvariablefromthevaluesoftheindependentvariables.?y=$25,000+(75$/ft2)(x)Areaofacircle:A=*r2ProbabilisticModel:amethodusedtocapturetherandomnessthatispartofareal-lifeprocess.y=25,000+75x+εE.g.doallhousesofthesamesize(measuredinsquarefeet)sellforexactlythesameprice?鬼蜕邓胜厕纸燃瘸这絮同莽井聘懊寅粒肆绵步摇恕啊阔边碴青超睫猖郧扳国外大学的英文线性回归讲义linearregressionKeller'sStatisticsforManagement&Economics,7thEd.10