首页
登录
职称英语
COMPARISON OF TEST SCORES FOR TWO CLASSES[img]ct_4image004[/img]Column A
COMPARISON OF TEST SCORES FOR TWO CLASSES[img]ct_4image004[/img]Column A
游客
2025-02-24
52
管理
问题
COMPARISON OF TEST SCORES FOR TWO CLASSES
Column A Column B
The mean of the 45 scores The median of the 45 scores
选项
A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案
D
解析
标题:两个班级考试分数的比较解:本题的正确答案是(D)。根据平均值(mean)与中数(median)的定义可知,它们两者之间不存在任何确定的关系。本题只可以算出左项,但无法得出右项,但右项必然小于或等于84,如果左项大于84,则选(A),但如果小于或等于84,则无法判断,左项为:(15×80+30×74) / 45 = 76
转载请注明原文地址:https://tihaiku.com/zcyy/3971191.html
相关试题推荐
Themedianof10,15,xandyis18.5,andx
COMPARISONOFTESTSCORESFORTWOCLASSES[img]ct_4image004[/img]ColumnA
ColumnAColumnBThegreatestprimefactorof15
ColumnAColumnBThenumberofpositivedivis
n=7×19³ColumnAColumnBThenumb
DirectionsforQuantitativeComparisonQuestions:Someofthefollowingquest
DirectionsforQuantitativeComparisonQuestions:Someofthefollowingquest
DirectionsforQuantitativeComparisonQuestions:Someofthefollowingquest
DirectionsforQuantitativeComparisonQuestions:Someofthefollowingquest
DirectionsforQuantitativeComparisonQuestions:Someofthefollowingquest
随机试题
Itisimportantthathe(be)______calledbackimmediately.(should)be本题考查的是虚拟语
WelcometovisitourcompanyandIamverygladtohavetheopportunity
Since2007,theAmericanPsychologicalAssociation(APA)hasconductedasurve
Trafficlightsarecrucialtoolsforregulatingtrafficflow.Theyarenot,
She’stakenaninterestinmakeup,soshemustaswelllearntoputitonproper
TomisstudyingChineseandhisunderstandingofproperChineseneedsto(improv
孙先生的孩子今年5岁,两年后将开始上小学。初步计算目前各阶段的年支出与就学年数如
下列不属于股权投资基金募集服务内容的是()。A.宣传推介股权投资基金 B.登
某工程,拟完工程计划投资和已完工程计划投资的比较如下图所示。图中△表示t时刻的(
患者常于熟睡时发生胸骨后疼痛,心功能检查左室射血分数45%,并需起坐方缓解气促。
最新回复
(
0
)