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
WINK, Inc. is made up of 450 employees who work a total of 13,500 hours per week. If the number of weekly work hours per person
WINK, Inc. is made up of 450 employees who work a total of 13,500 hours per week. If the number of weekly work hours per person
admin
2013-05-19
29
问题
WINK, Inc. is made up of 450 employees who work a total of 13,500 hours per week. If the number of weekly work hours per person has a normal distribution and the standard deviation equals 7 hours, how many employees work more than 37 hours per week?______
选项
答案
72
解析
The correct answer is 72. Based on the given information, you know that the average is 13,500+450, or 30 hours. One standard deviation above the mean is 37 hours. The bell curve of a normal distribution puts the mean at 50%. One standard deviation in either direction is 34% away from the mean. So, one standard deviation is 84% of the employees. Since 84% of the employees work 37 hours, 16% work more than 37 hours. 16% of 450 employees = 72.
转载请注明原文地址:https://jikaoti.com/ti/YLdYFFFM
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
IftheDakotaAccessPipeline(输油管道)iscompleted,itwillcarrynearlyhalfamillionbarrelsofoilacrossfourstateseveryda
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin1872,thegoalwastosetasideaplacewhereAmericanscou
Itisonlywhenpeopletrytoliveonaveryrestricteddietthatitisnecessarytomakespecialprovisiontosupplythemissin
Thus,thosewhoranthemostatethemost,yetlostthegreatestamountofbodyfat.(Passage1)
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
Youmusthavebeentroubledbywhentosay"Iloveyou"becauseitisoneofthegreatestpuzzlesinourlife.Whatifyous
Mr.Smithwillbe______theofficenextweekwhenthemanagerisaway.
AftersixmonthsoflivinginNewZealand,Irealizedonething.Despitemy【C1】______forgreatercontactwithlocalstudents,un
Inarightisoscelestriangle,thelengthsofthetwononhypotenusesidesaredesignateda.Whatistheareaofthetrianglein
随机试题
《纪念傅雷》是一篇()的散文。
患者女,51岁。风湿性心瓣膜病二尖瓣狭窄并关闭不全20年,房颤4年。无高血压及高脂血症病史。3小时前在家做饭时突然跌倒在地伴失语。如该患者的心脏超声示左心房大小为60mm×70mm,对其房颤的治疗最恰当的是
某家长咨询有关小儿生长发育的问题。5岁小儿按公式计算身长、体重及头围约是
某地拟建一办公楼,与该工程技术条件基本相同的概算指标经地区价差调整后的建安工程价格为20万元/100m2,其中,直接工程费所占比例为75%,拟建工程与概算指标相比,仅楼地面面层构造不同,概算指标中楼地面为地砖面层,拟建工程为花岗石面层。该地区地砖和花岗石面
在编制本年度合并财务报表时,如果以前年度母公司以高于其账面价值的价格出售给子公司的固定资产,在本年度报废,则不应当再对该内部固定资产交易作抵销处理。()
有限责任公司的权力机构是()。
双趋冲突,是指两种对个体都具有吸引力的目标同时出现,而由于条件限制,个体无法同时采取两种行动所表现的动机冲突。根据上述定义,下列属于双趋冲突表现的是()。
关于Linux操作系统的描述中,错误的是()。
下列叙述中,错误的是()。
在考生文件夹下MINK文件夹中建立一个名为“WOOD”的新文件夹。
最新回复
(
0
)