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1、智课网GMAT备考资料智课教育GMAT综合推理详解（二）-智课教育Weight-for-age-standardsThegraphshowsthepercentiledistributionofweight,inkilograms,forheightsfrom80cmto120cm,forboysages2through5,accordingtotheWHOmodel.Inamodelpopulation,forn=3,15,50,85,and97,thenthpercentileinweightamon
2、gboysofthatheightthatisgreaterthanorequaltonpercent,andlessthanorequalto(100-n)percent,ofweightofboysofthatage.WeightPercentilesforHeightforBoys2-5Years13、Bisaboyaged4years3months[l1]whoseheightis110cm[l2]andwhoseweightis19kg[l3].Foreachofthefollowingstat
3、ements,selectYesif,basedonthegiveninformation,itmustbetrueofBrelativetoamodelpopulation.Otherwise,selectNo.13ANoApproximately50%ofboysatthesameweightareshorterthanB[l4]13BYesNomorethan15%[l5]ofboysatthisagearetallerthanB13CYesB'sheightisgreaterthanorequal
4、tothatof50%[l6]ofboysaged5years0months.[l1]对应表1：4:3[l2]表1：109.5-113.1之间[l3]对应表1纵坐标“19”[l4]表2中(13A)[l5]表1：85th和4:3[l6]表1：中5:00和110.0cm14、Foreachofthefollowingstatements,selectYesifthestatementmustbetrueofaboyselectedatrandomfromamodelpopulation.Otherwise,s
5、electNo.14AYesIfhisageisgreaterthan3years3months,theprobabilitythathisheightisatleast98.0cmisgreaterthan50%[l1].14BYesIfheisatleast105cmtall,theprobabilitythathisweightis14.0kgisnogreaterthan3%[l2].14CNoIfheis114cmtall,heistallerthanatleast85%[l3]ofboyshi
6、sage.[l1]如表1：(红色箭头)所示[l2]表2：14B所示[l3]表1：14C所示,并不知道年龄,所以无法得出比例15、Consideranindividualboyfromamodelpopulation.Supposethatfromage2throughage5,thisboy'sweightisatthe50thpercentileforhisheightandhisheightisatthe50thpercentileforhisage.Whichofthefollowingstatem
7、entsmustbetrueoftheboyatage5years0months?A.Hisageisatthe50thpercentileforhisheight[l1]B.Hisweightisatthe50thpercentileforhisage[l2]C.Hisheightisatthe50thpercentileforhisweight[l3]D.Hisweightisapproximately150%ofhisweightatage2years0months.[l4]E.Hisweighti
8、sapproximately200%ofhisweightatage2years0months.[l5][l1]没有“年龄-高度”的坐标[l2]没有“年龄-体重”的坐标[l3]没有“体重-高度”的坐标[l4]表1和表2“15题”“蓝色虚线图标”[l5]表1和表2“15题”“蓝色虚线图标”16、Bisaboyaged4years3monthswhoseheightis110cmandwhoseweightis19kg.forea
