首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
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
admin
2014-08-13
62
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://kaotiyun.com/show/V5kO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
Thesciencebehindsolar(太阳的)energyisnotnew.ButSheridanCommunitySchoolsisthefirstschooldistrictinIndianatobec
Greenseaturtles(海龟)aretheworld’slargestspeciesofhard-shelledseaturtle.Whilemostindividualsweighabout136to181
RowanTorrezwillneverbeabletobearhislate(已故的)fathertellhimthatheloveshim,butyesterdayhe【C1】______receivedhisd
Caraccidentskillmorethanonemillionpeopleandinjureapproximately50millioneachyear.【C1】______,millionsoffishcans
Mysterynovelssellthousandsofcopieseachyear.Andmany【C1】______countAgathaChristieamongtheirfavoriteauthors.Christi
ThephysicalproblemthatmanyadultAmericanshaveisthat______.Modernscientificresearcheshavereportedtousthat_____
Whatyou’realwaysheard?We’reeatingtoomuchsalt.TheaverageAmericangetsabout3.4gramsofsodiumeveryday,farmoreth
Ofcourseacertainamountofdependenceonothersisnotonlygood,butnecessary.Childrenmustbedependentontheirparent
Intherectangularfigureabove,theareaoftheshadedregionisequaltotheareaofthenon-shadedrectangle.IfAB=6,BC=4,
Points(-2,x)and(y,2),notshowninthefigureabove,areinquadrantsⅢandⅡ,respectively,inwhichquadrantispoint(x,y)
随机试题
下列图例中表示管线的连接方式为()。
A.荆防颗粒B.伤风感冒颗粒C.风热感冒颗粒D.扑感片E.桑菊感冒具有发汗解表,散风祛湿功效的非处方药是
下列有关基本养老保险缴纳基金和费用缴纳的说法正确的是:()
证券公司应当缴纳的基金,按照证券公司佣金收入的一定比例预先提取,并由中国证券登记结算有限责任公司代扣代收。( )
()的房屋管理不属于《物业管理条例》调整的物业管理。
[*]
股份公司在下列哪种情况下可能要增发股票()
把目标程序中的逻辑地址转换成主存空间的物理地址称为( )。
程序调试的任务是
Chinahasthegreatestpopulationintheworldandalargepoolofresearchworkers,yetithasnotproducedasingleNobelPriz
最新回复
(
0
)