首页
登录
职称英语
The numbers in data set S have a standard deviation of If a new data set is form
The numbers in data set S have a standard deviation of If a new data set is form
游客
2025-02-24
28
管理
问题
The numbers in data set S have a standard deviation of If a new data set is formed by adding 3 to each number in S, what is the standard deviation of the numbers in the new data set?
选项
A、2
B、3
C、5
D、8
E、15
答案
C
解析
Recall that the standard deviation of the numbers in a data set is a measure of the spread of the numbers about the mean of the numbers. The new data set is formed by adding the
same
number, 3, to
each
number in data set S. Thus, the mean of the numbers in the new data set is 3 more than the mean of the numbers in S, but the spread of the numbers in the new data set about the mean of the numbers in the new data set is the same as the spread of the numbers in S about the mean of the numbers in S. Because the standard deviation of the numbers in S is 5, the standard deviation of the numbers in the new data set is also 5. The correct answer is Choice C.
转载请注明原文地址:https://tihaiku.com/zcyy/3970295.html
相关试题推荐
Thedistributionofthenumbersofhoursthatstudentsatacertaincollegestud
ApproximatelywhatwastherangeofthenumbersofInternetusersinthesevena
Thenumbersofpassengerson9airlineflightswere22,33,21,28,22,31,44,
Thenumbersofpassengerson9airlineflightswere22,33,21,28,22,31,44,
Thefunction/hasthepropertythatf(x)=f(x+1)forallnumbersx.Iff(4)=17,w
Whichofthefollowingnumbersisfarthestfromthenumber1onthenumberline?
Foracertaindistribution,themeasurement12.1is1.5standarddeviationsbelo
Ifthefunctiongisdefinedforallnonzeronumbersybyg(y)=[img]2015m7x/ct_e
Fromasetof100numbers,halfwereselectedtoformgroupI,and60percentof
Theleastandgreatestnumberinalistof7realnumbersare2and20,respecti
随机试题
______theflood,theshipwouldhavereacheditsdestinationontime.A、Incaseo
Desktoppublishingsystemisamodernpublishingsystemwhichmakesuse
Theprocessby【C1】______ofwhichhumanbeingsarbitrarilymakecertainthing
[originaltext] ResearchersreportedtheirfindingsinTheLancetmedicaljourn
治疗鼠疫的首选药物是A.甲氧苄啶 B.诺氟沙星 C.氧氟沙星 D.呋喃唑酮
下列哪项不属于私人股权的是( )。A.上市企业非公开发行和交易的普通股 B.
( )是指促使别人顺从自己的愿望。A.成就需要 B.权力需要 C.亲和需要
在课程内容选择上,斯宾塞认为科学知识最有价值;其判断依据是他的A.社会本位教育目
甲股份有限公司为上市公司(以下简称甲公司),系增值税一般纳税人,适用的所得税税率
地下水位以下土层的桥梁基础施工,不适宜采用成桩设备是( )。 A.正循环回旋
最新回复
(
0
)