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
2025-02-23
30
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?
选项
答案
(a)mean = 79
(b)The median cannot be determined from the information given.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3969953.html
相关试题推荐
InhowmanydifferentwayscanthelettersinthewordSTUDYbeordered?5!=120
Howmanydifferentfive-digitpositiveintegerscanbeformedusingthedigits1
Inadistributionof850differentmeasurements,xcentimetersisatthe73rdpe
Ifn=pqr,wherep,q,andrarethreedifferentprimenumbers,howmanydiffere
Thereare7positiveintegersinthelist.Themedianofthelistis10,andthe
Fourdifferentpersonswillbeselectedfrom2menand5womentoserveonacom
Themedianof21differentintegersis17.Whichofthefollowingistheleastp
Fivepairsofsocksareofdifferentcolor.Iftwosocksaretobeselectedatr
A是一个由5个不相同的正整数组成的集合,B是一个由4个不相同的正整数组成的集合,并且B是A的子集。问A、B的下面哪一个是不可能相同的?A、medianB、av
Ifxandyaredifferentprimenumbers,eachgreaterthan2,whichofthefollow
随机试题
Thespeakersaysthatthepercentageofbusinessesthatarefamilyrunis[br]W
夜色中看这堵围墙,十分奇妙,颇有点诗意。白墙、黑瓦、宝蓝色的漏窗泛出晶莹的光辉,里面的灯光从漏窗中透出来,那光线也变得绿莹莹的。清风吹来,树枝摇曳,灯光
A.appearanceB.appropriateC.attractiveD.complexE.concern
【S1】[br]【S10】on→over本题考查动词短语用法。takeon意为“雇用”。takeover指“接管,接受,占用”。
在设计节水型居住小区时,需计算年绿化浇灌用水量及平均日绿化浇灌用水量。该小区室外
A.哌甲酯 B.地西泮 C.苯巴比妥 D.丙戊酸钠 E.匹莫林多动性障碍
患儿男,3周,因发热3天,呕吐、精神差1天入院,查体:皮肤色素深,脱水明显,阴茎
填写开户资料时,理财师可获得的客户的基本信息不包括()A.证件信息 B.联
在融资融券业务的决策与授权体系下,业务决策机构负责( )。 I制定融资融券
交通运输外部性的层次可分为( )。 A.供给外部性 B.使用外部性
最新回复
(
0
)