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
33
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
AtatimewhenInternetuseisexpandingrapidly,socialcriticssaythetechnol
Whenwashisbicyclestolen?______yearsago.[br]WhatwouldJohn’smother
Younghorsesmaydevelopa______coughbeforeandduringexercise,particularly
Letusconsiderwhatscienceandtechnologyhavetocontributetothefoodp
[originaltext]SixbirdshavejustbeentrainedtopickuprubbishataFrenc
下列哪项属于高危儿A.出生时Apgar评分为8分 B.母亲孕期吸烟、吸毒、酗酒
男性,56岁,上腹部隐痛不适一年,体重减轻约10㎏,自服制酸剂无效,钡餐检查胃窦
某小区C座15楼层的业主小张,在房屋的储藏室内擅自安装了自动抽水马桶、洗脸盆,改
(2017年真题)M公司用甲材料生产A产品,甲材料标准价格是200元/千克,用量
最新回复
(
0
)