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
What is the standard deviation of the three numbers x+5, y+5, z+5? (1)The standard deviation of x and y is greater than 0.3. (2)
What is the standard deviation of the three numbers x+5, y+5, z+5? (1)The standard deviation of x and y is greater than 0.3. (2)
admin
2022-11-09
58
问题
What is the standard deviation of the three numbers x+5, y+5, z+5?
(1)The standard deviation of x and y is greater than 0.3.
(2)The standard deviation of x, y and z equals to 0.2.
选项
A、Statement (1) ALONE is sufficient, but statement (18) alone is not sufficient to answer the question asked.
B、Statement (2) ALONE is sufficient, but statement (17) alone is not sufficient to answer the question asked.
C、BOTH statement (1) and (18) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient to answer the question asked.
E、Statement (1) and(18)TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
答案
B
解析
此题考查对标准方差性质的理解。当数列中的每一个数都加上一个常数,那么新产生的数列的标准方差和原数列的标准方差相等。所以很容易得到B为正确答案。
转载请注明原文地址:https://www.kaotiyun.com/show/RjtO777K
本试题收录于:
GMAT QUANTITATIVE题库GMAT分类
0
GMAT QUANTITATIVE
GMAT
相关试题推荐
Mancannotgoonincreasinghisnumberatthepresentrate.Inthenext30yearsmanwillfaceaperiodofcrisis.Someexperts
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociolo
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystriestodoaslittleaspossibleandtogetasmuchi
Normallyastudentmustattendanumberofcoursesinordertograduate,andeachcoursewhichheattendsgiveshimagradewhic
A、 B、 C、 D、 C句意:只有通过这种方式,我们才能消灭敌人。only所修饰的副词、介词短语或状语从句位于句首时,要用倒装语序,助动词/情态动词提到主语前,C处应改为canwe。
InShanghai,agrowingnumberofforeign-fundedbanksarelookingforlocalpeopletofillexecutivepositions(行政主管的岗位)ratherth
Therearemanyolderpeopleintheworldandtherewillbemanymore.Alittle-knownfactisthatover60percentoftheolderp
Twocubeseachhas6sides,whichrepresents1,2,3,4,5,6respectively.Putthetwocubesonthedesk,howmanypossibilitie
Forwhichofthefollowinglistsofnumberisthemedianequaltotheaverage(arithmeticmean)?
随机试题
Despiteatendencytobeovertly________,thepoetrydoesnotconsistsolelyofpioussentiments:Itsparkstheimaginationand
临床较为常用的肱骨近端骨折分型为________分型,可分为________、、________和________。
苓甘五味姜辛汤的功用是
经行政监督部门批准后,下列项目中可不进行招标的是()。
某货主托运一票货,该货的积载因数是1.6立方米/吨。如将该票货装于某拼箱公司的国际标箱1CC箱中,已知该集装箱自重为2.5吨,最大总重量为24吨,计算亏箱后最大总容积为29立方米。问:(1)1个1CC箱中最多可装多少吨该票货物?(2)如果货主仅托运
认股权证的三要素是()
材料:每一棵草都会开花去乡下,跟母亲一起到草地里去。惊奇地发现,一种叫牛耳朵的草,开了细小的黄花。那些小小的花,羞涩地藏在叶间,不细看,还真看不出。我说,怎么草也开花?母亲笑着扫
19世纪中期矢志将自己的艺术奉献给“泥土上的英雄”——农民的法国现实主义画家是()
下列各句中,画横线的成语使用不恰当的一项是:
Inafamouslabtrial,achimpnamedSultanputtwointerlockingstickstogetherandpulleddownabunchofbananashangingjust
最新回复
(
0
)