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
22
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
Researcherssaiditwasclearthattheworld’soceansplayamajorroleinq
ThreefactorscontributetothemiraculousspreadofEnglish【C1】______an
AccordingtoagroupcalledtheVoicesFoundation,everyonehasasingingvo
Muchhasbeenwrittenaboutpovertybutnoneoftheaccountsseemtogetat
审在施工图预算的方法中,具有重点突出,审查时间短、效果好的优点的是( )。A.
唾液中IgA的主要来源为A.小涎腺 B.舌下腺 C.腮腺 D.大涎腺 E
学习选修课程“古代诗歌意象”,学生了解到很多意象与“浮云游子意,落日故人情”中的
关于票据出票日期的写法.正确的是()。A.出票日期为:贰零零柒年零壹月壹拾伍日
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
既补肝肾强腰膝,又祛风湿的药物是A.杜仲 B.海马 C.蜂蜜 D.狗脊
最新回复
(
0
)