首页
登录
职称英语
A group of 20 values has a mean of 85 and a median of 80. A different group of 3
A group of 20 values has a mean of 85 and a median of 80. A different group of 3
游客
2024-01-12
58
管理
问题
A group of 20 values has a mean of 85 and a median of 80. A different group of 30 values has a mean of 75 and a median of 72.
(a)What is the mean of the 50 values?
(b)What is the median of the 50 values? [br]
选项
答案
mean = 79
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3355561.html
相关试题推荐
Howmanydifferentpositiveintegersarefactorsof342?A、9B、11C、12D、20E、22
ThreedifferentlumberjackscanchopWamountofwoodin30minutes,45minutes,
Sixdifferentnumbersaretobeselectedfromthe(0,1,2,3,4,5,6)tocompos
Themedianoffivedifferentpositiveintegersis12,whichofthefollowingis
Whatisthetotalnumberofdifferent5-digitintegersthatcontainallofthed
Themedianoffivepeople’s(A,B,C,DandE)salaryis20,000andtherangeof
Whichofthefollowingdescribesthesetofallpossiblevaluesofthepositive
What’sthemedianof3,6,5,1,6,7,8?A、1B、3C、6D、7E、8C不能轻易的认为中数就是1;我们首先要将这组数做有
Ifx,yandzaredifferentpositiveintegerslessthan10,whatisthegreatest
有一数列Xk=4×k-3,k分别为7,8,9,4,5,6,10,11,12,问这些数的median等于多少?A、29B、17C、13D、21E、15A
随机试题
A——trafficregulationB——safetyislandC——over/overpassD——parki
[originaltext]W:Well,hello,Jack!Haveyoumovedorsomething?Youhaven’tbeen
A、Togetahighscore.B、Tobedifferentfromothergroups’papers.C、Tomaketh
但中国人口众多、资源不足,能源发展面临着诸多挑战,比如石油储备不足,能源消费增长过快。However,asacountrywithalargepo
[originaltext]M:Iamgoingtothezootomakesomesketchesofelephantstoday
下列属于建筑物的附属部分的有()。A.墙 B.楼梯 C.阳台 D.雨篷
根据表中所给信息,少数民族学生人数最多的是:() A.普通本科 B.成人
A. B. C. D.
某重点大学毕业生小李,在公开招聘中以优异的成绩被聘为某初中老师,刚上班时,他虚心
用于钻孔灌注桩的导管在使用前,应对导管检漏和(),以防导管渗漏。A.抗拉力
最新回复
(
0
)