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
26
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:http://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
[originaltext]W:Ithoughtyouweregoingtodrivecarefullysoyouwouldn’tge
[audioFiles]audio_ezfm_0037(20104)[/audioFiles]Goatsalwaysseemtobesec
Thefactis,theworldhasbeenfindinglessoilthanithasbeenusingfor
2009年度全国旅行社营业收入为1806.53亿元,同比增长8.64%;毛利润总
属于毒性中药的是A.洋地黄毒苷 B.阿托品 C.去乙酰毛花苷 D.雄黄
(2017真题)建筑物的耐火等级由建筑主要构件的()决定A.燃烧性能 B.耐
为了保证债权人受偿而由债务人或第三人提供的担保,具有从属于被担保的债权性质,这种
泰兴集团根据不同国家的不同市场(多国本土化,所以相适应的是全球区域分布),提供更
下列各项中,属于后向一体化战略主要适用条件的有()。A.企业的销售商利润率较高
隧道围岩详细定级时,不是对围岩BQ指标进行修正的因素是()。A.有地下水 B
最新回复
(
0
)