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
60
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
Banksfacelossesfromthreesources:theirownpositionifshortorlongi
A、Askforherparents’permission.B、Notmentionthepartytoherparents.C、Hel
Whenateacher【B1】______astudenttoreadabookit’susuallyforaparticu
[originaltext]Todaylet’stalkaboutsocialnetworking.Firstlet’stalkab
小学数学《时、分、秒》主要教学过程及板书设计 教学过程 (一)创设情境,引入新课 1.出示主题图,让学生观察:新年的钟声即将敲响,让我们一起倒计时,十、九
二尖瓣狭窄患者听诊不可能出现的是A.S强弱不等 B.大炮音 C.S增强 D
某桩基工程,采用PHC600管桩,有效桩长28m,送桩2m,桩端闭塞,桩端选用密
A.零 B.1个 C.2个 D.3个
股票投资战略中积极管理与消极管理的根本区别在于()。 A.投资者的风险承受能
既能解毒消肿止痛,又能开窍醒神,主治痧胀腹痛、吐泻昏厥的药物是A.斑蝥 B.马
最新回复
(
0
)