首页
登录
职称英语
A list of numbers has a mean of 8 and a standard deviation of 2.If x is a number
A list of numbers has a mean of 8 and a standard deviation of 2.If x is a number
游客
2024-01-12
58
管理
问题
A list of numbers has a mean of 8 and a standard deviation of 2.If x is a number in the list that is 2 standard deviations above the mean, what is the value of x ? x=______
选项
答案
13
解析
You are given that x is 2 standard deviations above the mean, 8. Because the standard deviation of the numbers in the list is 2.5, it follows that x is(2)(2.5), or 5 units above the mean 8. Therefore, x = 8 + 5 = 13, and the correct answer is 13.
转载请注明原文地址:http://tihaiku.com/zcyy/3355898.html
相关试题推荐
Thenumberofundergraduatedegreesinengineeringawardedbycollegesandunive
In1980,forthefirsttime,thenumberofforeignerstouringtheUnitedStates
Unlikeinothertransportationindustries,therearenominimumstandardssetby
From1965on,Yugoslavia’sstandardoflivinghassoared,butunemploymentandp
Since1981,whenthefarmdepressionbegan,thenumberofacresoverseenbyprof
Upsetbytherecentdownturninproductionnumbersduringthefirsthalfofthe
LosAngeleshasahighernumberoffamilydwellingspercapitathananylargeci
Althoughnumbersofanimalsinagivenregionmayfluctuatefromyeartoyea
Althoughnumbersofanimalsinagivenregionmayfluctuatefromyeartoyea
Althoughnumbersofanimalsinagivenregionmayfluctuatefromyeartoyea
随机试题
Thesedays,everyonetalksaboutbeingtoobusy.Butallthisbusynessdoesnot
TheboxbelowgivesalistofresponsesA-PtothequestionnairediscussedinRe
如今,中国自行车年增长率不超过10%,但高端自行车(high-endbike)年增长率却高达40%。Today,theannualincreaseof
下列关于千步当量描述正确的是()A.-个千步当量等于4km/h中速步行10分钟
胰头癌主要的症状是()A.腹痛,腹部不适 B.消化不良、厌食 C.进行
经并购重组委审核后获得核准的重大资产重组实施完毕后,上市公司申请公开发行新股或者
适合治疗阴偏衰的治法是A.阳病治阴 B.阴病治阳 C.阴中求阳 D.阳病治
挥发油难溶于A.水 B.高浓度乙醇 C.二硫化碳 D.石油醚 E.乙醚
在《商业银行风险监管核心指标》中,核心负债比率为核心负债与负债总额之比,不得低于
(2016年真题)企业采用成本分析模式管理现金,在最佳现金持有量下,下列各项中正
最新回复
(
0
)