首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
某商场为了了解顾客的购物信息，随机在商场收集了100位顾客购物的相关数据如表： 统计结果显示100位顾客中购物款不低于150元的顾客占30%，该商场每日大约有4000名顾客，为了增加商场销售额度...
查看本题答案
包含此试题的试卷
高三上学期数学《》真题及答案
点击查看
你可能感兴趣的试题
某商场为了吸引顾客设立了可以自由转动的转盘如图转盘被均匀分为20份并规定顾客每购买200元的商品就能
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信
6人
11人
39人
44人
某商场为了解本商场的服务质量随机调查了来本商场购物的100名顾客调查的结果如图所示根据图中给出的信息
某超市为了解顾客的购物量及结算时间等信息安排一名员工随机收集了在该超市购物的100位顾客的相关数据如
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信息
6人
11人
39人
44人
某电台为了了解国产家电的使用状况及占有率在几个大商场向所遇见的顾客调查有关情况以掌握初步信息这种调查
任意抽样法
判断抽样法
配额抽样法
系统抽样法
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信
6人
11人
39人
44人
某超市为了解顾客的购物量及结算时间等信息安排一名员工随机收集了该超市购物的 100 位顾客的相关数
某商场为了吸引顾客设立了可以自由转动的转盘如图转盘被均匀分为20份并规定顾客每购买200元的商品就能
某超市为了解顾客的购物量及结算时间等信息安排一名员工随机收集了在该超市购物的 100 位顾客的相关数
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信息
6人
11人
39人
44人
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信息
6人
11人
39人
44人
沃尔玛商场为了了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示根据图中给出的信息
6人
11人
39人
44人
某商场为了解本商场的服务质量随机调查了本商场的200名顾客调查的结果如图所示.根据图中给出的信息这2
某商场为了了解本商场的服务质量随机调查了该商场的100名顾客调查结果如图所示根据图中给出的信息这10
某超市为了解顾客的购物量及结算时间等信息安排一名员工随机收集了在该超市购物的 100 位顾客的相关
某商场为了解本商场的服务质量随机调查了本商场的100名顾客调查的结果如图所示.根据图中给出的信息这1
1.暑假将至某商场为了吸引顾客设计了可以自由转动的转盘如图所示转盘被均匀地分为20份并规定顾客每20
.暑假将至某商场为了吸引顾客设计了可以自由转动的转盘如图所示转盘被均匀地分为20份并规定顾客每200
某超市为了解顾客的购物量及结算时间等信息安排一名员工随机收集了在该超市购物的 100 位顾客的相关数
热门试题
更多
仔细阅读下面例题解答问题 例题已知二次三项式x2﹣4x+m有一个因式是x+3求另一个因式以及m的值． 解设另一个因式为x+n得 x2﹣4x+m=x+3x+n 则x2﹣4x+m=x2+n+3x+3n ∴． 解得n=﹣7m=﹣21 ∴另一个因式为x﹣7m的值为﹣21 问题仿照以上方法解答下面问题 已知二次三项式2x2+3x﹣k有一个因式是2x﹣5求另一个因式以及k的值．
用适当的方法解下列方程x²-4x-12=0
10分文中共有10处错误每句中最多有两处.错误涉及一个词的增加删除或修改.增加:在缺词处加一个漏词符号/\并在此符号下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. OnalatersummereveningmyfatherandIwaswalkinghappilyhome.Wehavejusthadabigmealinarestaurantnearourhome.AswewerewalkingslowlydownthestreetIaskedmyfatherinalowvoiceWhatdoestheword'drunk'mean?That'seasilyboysaidmyfather.Doyouseethesetwopolicemenoverthere?IfIlookatthemIseefourinsteadtwoandI'mdrunk.Understand?HearingatthisIpretendedtobepuzzledandsaidMyGodandtherearesixpolicemenoverthere.Can'tyousee?Myfatherlookedatmeingreatsurprised.Youarereallydrinkson.
Anelephanthasalotofsuchasdrawingpicturesandhavingagoodmemory.A.importance B.facts C.abilities D.symbols
将抛物线y=x²向下平移若平移后的抛物线经过点A21则平移后的抛物线的解析式为
8分Sureit'sgoodtogetalongwellwithyourteacherbecauseitmakesthetimeyouspendintheclassroommorepleasant. Andyesit'sgoodtogetalongwellwithyourteacherbecauseingeneralit'ssmarttolearnhowtogetalongwellwiththedifferenttypesofpeopleyou'llmeetthroughoutyourlife. Infactkidswhogetalongwellwiththeirteachersnotonlylearnmorebutthey'remorecomfortablewithaskingquestionsandgettingextrahelp.Thismakesiteasierforthemtounderstandnewmaterialsandmakesthemdotheirbestontests.Whenyouhavethiskindofrelationshipwithateacherheorshecanbesomeonetoturntowithproblemssuchasproblemswithlearningorschoolissues问题. Hereisaquestion:Whatifyoudon'tgetalongwithyourteachers?Infactteacherswanttogetalongwellwithyouandenjoyseeingyoulearn.Butteachersandstudentssometimeshavepersonalityclashes个性冲突whichcanhappenbetweenanytwopeople.Ifyoushowyourteacherthatyouwanttomakethesituationbetterheorshewillprobablydoeverythingpossibletomakethathappen.Bydealingwithaproblemlikethisyoulearnsomethingabouthowtogetalongwithpeoplewhoaredifferentfromyou. Howeverifacertainteacherisn'tyourfavoriteyoucanstillhaveasuccessfulrelationshipwithherorhimespecially________.Herearesomeofthoseresponsibilities责任: Attendclassreadytolearn. Bepreparedforclasswiththerightstationerybooksandcompletedassignments作业. Listenwhenyourteacheristalking. Doyourbestwhetherit'saclassroomassignmenthomeworkoratest.. 25.Accordingtothepassagegettingalongwellwithyourteacherswillmakeyou. A.havenoproblemswithstudy B.getabetterseatintheclassroom C.getthebestscoresintheexams D.havemorepleasanttimeintheclassroom 26.Theunderlinedwordthatinthefourthparagraphrefersto. A.thehappytimeyouhaveintheclassroom B.gettingalongverywellwithclassmates C.abetterrelationshipbetweenyouandyourteacher D.thedisappearanceofpersonalitydifferences 27.Whichofthefollowingcanbefilledintheblank? A.ifyoufulfill履行yourbasicresponsibilitiesasastudent B.ifyouarethoughtofasagoodstudent C.ifyouknowsomebasicsocialskills D.ifyouareeasygoingandhelpful 28.Whatdoesthepassagemainlytalkabout? A.Theimportanceoffriendshipinschools. B.Theimportanceofagoodrelationshipwithyourteachers. C.Studyingskillsforstudents. D.Usefulskillstogetalongwellwithyourteachers.
已知抛物线y=-x-2²的图象上有两点x1y1和x2y2且x1＞x2＞2则y1与y2的大小关系是
某校兴趣小组想测量一座大楼AB的高度．如图大楼前有一段斜坡BC已知BC的长为24米它的坡度i=1．在离C点80米的D处用测角仪测得大楼顶端A的仰角为37°测角仪DE的高为1.5米求大楼AB的高度约为多少米结果精确到0.1米 参考数据sin37°≈0.60cos37°≈0.80tan37°≈0.75≈1.73
8分Apaperclipmadeofsteelwirebentintoalooped环形的shapeisaninstrumentusedtoholdsheetsofpapertogether.Thiscommondeviceisawonderofsimplicityandfunction.Butwheredidthissimplecheapandpracticalinventioncomefrom? Inthelate19thcenturythemostcommonwaytoholdpaperstogetherwasbyusingapin.Althoughthepinwasaninexpensivetoolandwaseasilyremovableitwould1eaveholesinthepaper.Laterassteelwirebecamemorecommoninventorsbegantonoticeitselastic有弹性的feature.Withthisfeatureitcouldbestretchedandtwistedintovariousclip﹣likeobjects.Intheyearsjustbefore1900quiteafewpaperclipdesignsappeared.ThenamemostfrequentlyassociatedwiththepaperclipinventionisJohanVaaleraNorwegianinventor.HoweverVaaler'sclipswerenotthesameasthepaperclipscurrentlyinuse.Specificallytheydidnothavetheinsideloopweseetoday.ThefamiliarloopeddesignwasinventedbyGemManufacturingLtd.inEngland.ThisclipisthereforesometimesknownastheGemclip. BecauseofVaalerthepaperclipplayedanimportanthistoricalroleinNorway.DuringWorldWarIINorwaywasoccupiedbytheNazis.Norwegianswereprohibitedfromwearinganysymboloftheirnationalunity团结suchasbuttonswiththeinitialsoftheirking.Thusinprotesttheystartedwearingpaperclipstoshowtheirunity.Thereasonfordoingthiswassimple:PaperclipswereaNorwegianinventionwhoseoriginalfunctionwastobindtogether.AfterthewaragiantpaperclipstatuewasputupinOslotohonourVaaler﹣eventhoughhisdesignwasneveractuallyproduced. 1.Accordingtothefirstparagraphthepaperclipis. A.madeofpaper B.forholdingclothestogether C.shapedlikeapin D.inexpensiveanduseful 2.Onewaythepaperclipisbetterthanthepinisthat A.itischeaper B.itissimpler C.itdoesn'tdamagethepaper D.itcanberemovedmoreeasily 3.WhichofthefollowingbestshowswhattheGemcliplookslike? 4.Thelastparagraphismainlyabout. A.howwidelyusedVaaler'sclipis B.howVaaler'sclipbecameanationalsymbol C.howtheNazisruledtheNorwegianpeople D.whyNorwegianshadtheinitialsoftheirkingontheirbuttons
8分Caneatingachocolatebareverydayreallypreventage﹣relatedmemoryloss?No.Butanewresearchshowsthatlargeamountsofflavones黄酮substancesfoundincocoateaandsomekindsofvegetablesmayimproveage﹣relatedmemoryfailure. Dr.ScottSmallisaprofessorofneurology神经学atColumbiaUniversityinnewYorkCityHeistheleadwriterofaresearchpaperdescribingtheeffectsofcocoaflavonesonbrainactivityHisstudyinvolved37volunteersagedbetween50and69.Researchersgavethemahigh﹣levelflavonesdrinkmadefromcocoabeansoralow﹣levelflavonesdrink.Foraperiodofthreemonthssomesubjectsgot900milligramsofflavonesaday.Theothersgot10milligramsofflavoneseachday.BrainimagingandmemorytestsweregiventoeachstudysubjectbeforeandafterthestudyDr.Smallsaysthatthesubjectswhohadthehigh﹣levelflavonesdrinkshowedmuchimprovementonmemorytests. Theresearcherswarnthatmoreworkisneededtobedonebecausethisstudywasperformedonlyonasmallgroup.Dr.JoannMansonistheleadresearcherofafour﹣yearstudyinvolving18000adults.Thisstudywilluseflavonescapsules.Thestudysubjectswillbedividedintotwogroupsandwilltaketwopillsperday.Thecapsulesusedwillalllookthesame.Butonegroup'scapsuleswillcontainflavoneswhiletheothergroupwilltakecapsulesmadeofaninactivesubstanceorplacebo安慰剂. Dr.Mansonsaysit'snotnecessaryforpeopletostarteatingmorechocolatebecause3personwouldhavetoeatahugeamountofchocolatetogetthesamelevelofflavonesgiventotheLestsubjects.Headdsmanymanufacturershaveplannedtoremovetheflavonesfromtheirchocolateproducts.SimilarityDr.saysacocoa﹣basedflavonesextract提取maybedevelopedinthefutureButhesaysthatmorestudiesareneededtoseehowmuchflavonesisgoodforourhealth. 1.WhatwasdonetothesubjectsalterDr.Small'sstudy? A.Theywereaskedtotakeahigh﹣levelflavonesdrink B.Theyweregivenbrainimagingandmemorytests C.Theyweregivencapsulescontainingflavones D.Theywereaskedtotaketwopillsofflavonescapsulesperday 2.What'sthesimilarityofthetwoexperiments? A.Bothusehigh﹣levelflavonescapsules B.Thenumberofthesubjectsisthesame C.Drinksandplacebosareusedinbothexperiments D.Thesubjectsaredividedintotwogroupsinbothexperiments 3.WhywillDr.Mansoncarryoutthefour﹣yearstudy? A.Tocarryouttheexperimentfurther B.Toprovethefirstexperimentiswrong C.Totesthowmuchflavonescanimproveourmemory. D.Toshoweatingchocolateisbettertoimprovememory. 4.Whatcanwelearnfromthelastparagraph? A.It'snotnecessaryforustoeatchocolate B.Inthefuturewecangetflavoneswithouteatingchocolate C.Themoreweeatflavonesthebetterourhealthwillbe D.It'seasyforpeopletogetthesamelevelofflavonesgiventothetestsubjects
30分 TheWorldAlwaysMakesWayfortheDreamer WhenIwastwelveyearsoldmyfathertookmetoseeZigZigler.IremembersittinginthatdarkhalllisteningtoMr.Zigler1everyone'sspiritsuptotheceiling.I2therefeelinglikeIcoulddoanything.WhenwegottothecarIturnedtomyfatherandsaidDadIwantto3peoplefeellikethat.Myfatheraskedme4Imeant.IwanttobeamotivationalspeakerjustlikeMr.ZiglerIreplied.AAn5wasborn. RecentlyIbeganseekingmydreamofmotivatingothers.6afour﹣yearrelationshipwithFortune100Company7asasales﹣trainerandendingasaregionalsalesmanagerIleftthecompanyattheheightofmy8.Manypeoplewere9thatIwouldleaveafterearningasix﹣figureincome.Andtheywondered10Iwouldriskeverythingforadream. Imademy11tostartmyowncompanyandleavemysecurepositionafter12aregionalsalesmeeting.Thevice﹣presidentofourcompanydelivereda13thatchangedmylife.HeaskedusIfagodwouldofferyouthreewisheswhatwouldtheybe?Aftergivingusa14towritedownthethreewisheshethenaskedusWhydoyouneeda15?IwouldneverforgetthepowerIfeltatthatmoment.Irealizedthat16Ihadaccomplishedinthepasthadpreparedmeforthismoment.Iwasreadyanddidn'tneedagod'shelptobecomeamotivationalspeaker.Amotivationalspeakerwas17. HavingmadethatdecisionIwasimmediately18.OneweekafterIgavenoticemyhusbandwaslaidofffromhisjobandnowwehadno19.ButIheldfasttomydream.Thewonderreallybegantohappen.Inashorttimemyhusbandfoundabetterjob.AndIwasabletobookseveral20engagementswithnewcustomers.Idiscoveredtheunbelievablepowerofdreams. 1.A.rise B.blow C.put D.raise 2.A.left B.came C.arrived D.reached 3.A.get B.hope C.make D.cheer 4.A.that B.what C.which D.if 5.A.dream B.idea C.girl D.speaker 6.A.After B.Before C.Because D.While 7.A.beginning B.working C.acting D.regarding 8.A.life B.love C.income D.career 9.A.disappointed B.moved C.surprised D.delighted 10.A.when B.why C.if D.how 11.A.plan B.promise C.decision D.mind 12.A.attending B.joining C.entering D.holding 13.A.newspaper B.book C.report D.speech 14.A.day B.second C.week D.moment 15.A.help B.job C.god D.company 16.A.everything B.anything C.nothing D.something 17.A.alive B.dead C.missing D.born 18.A.examined B.searched C.checked D.tested 19.A.help B.harm C.income D.money 20.A.selling B.speaking C.writing D.listening
30分I'dbeenproudthatI'dneverlostmycellphoneuntilmyhusbandJackgotacalloneevening. Wewenttovisitafriendinhospitallastyear.WhenJack's41rangitwasmymothercallingfrommy42.SheaskedifIhad43mymobile.Icheckedmypurse.Itwas44！ IusedJack'sphonetocallmynumber.ThenaboywhomI'llcallRhys45it.Ifoundyourphone！hesaidexcitedly.Ihavebeentryingtofindyoubut46itwasgettinglateIdecidedtoleave.Hegavemetheaddressofa47nearhishome. LaterthateveningIwentto48himthere.Ididn'tdaretogo49worryingthiswassomecheater.SoJackcamealong.After5010kmwegottothecoffeeshopwhichRhys51. My52weregone.Rhyswasjustayoungboy.Howdidyou53mymum?Iasked.He54thatwhenhefoundmymobilebytheroadsidehestartedcallingpeopleinmylistofcontacts联系人.Butallthey55wasmymobilephonenumber﹣whichdidn't56.He'dcalledmanynamesstartingwiththeletterA.FinallyhegotAdamoneofmyfriendswho57myhouse. Iwas58togetmyphonebackwithallthecontactsmessagesandphotosIcouldhavelostforever.Iwasso59toRhysandofferedhimsomemoneybuthe60. AswedrovebackwepraisedRhysforhishonesty. 41.A.electriccar B.mobilephone C.radio D.doorbell 42.A.hospital B.Company C.school D.home 43.A.found B.Changed C.lost D.bought 44.A.gone B.New C.busy D.broken 45.A.accepted B.Returned C.got D.answered 46.A.before B.Because C.after D.if 47.A.coffeeshop B.postoffice C.hotel D.supermarket 48.A.follow B.Meet C.catch D.punish 49.A.slowly B.Back C.alone D.finally 50.A.driving B.Running C.walking D.riding 51.A.talkedabout B.lookedfor C.heardof D.knewabout 52.A.difficulties B.Fears C.diseases D.hopes 53.A.remember B.Know C.tell D.understand 54.A.realized B.Repeated C.explained D.believed 55.A.had B.Noticed C.expected D.finished 56.A.happen B.Matter C.help D.fit 57.A.called B.Visited C.shared D.sold 58.A.sorry B.Glad C.sad D.proud 59.A.useful B.Strange C.grateful D.polite 60.A.missed B.Appeared C.agreed D.refused
如图在△ABC中点D在BC边上BC=3CD分别过点BD作ADAB的平行线并交于点E且ED交AC于点FAD=3DF． 1求证△CFD∽△CAB 2求证四边形ABED为菱形 3若DF=BC=9求四边形ABED的面积．
1分Thequestionsheraisedduringthediscussionwerealltothep.
对下列多项式进行分解因式2xa-b+3yb-a
某白色固体甲的主要成分为NaCl可能含有MgCl2KClBaCl2和NaOH中的一种或几种杂质为检验白色固体甲的成分并除去其中杂质进行如下实验 1写出生成白色固体丙的化学方程式 2向无色溶液D中加入过量稀盐酸的目的是 3分析上述实验可知白色固体甲中一定没有的物质是 4若用上述实验中的ABCD四种溶液鉴别稀H2SO4和NaOH溶液分别取样后按下图所示操作进行实验就能达到鉴别目的的是实验
对下列多项式进行分解因式x-y2+16y-x
观察下列各式x-1÷x-1=1x2-1÷x-1=x+1x3-1÷x-1=x2+x+1x4-1÷x-1=x3+x2+x+1．1根据上面各式的规律可得xn+1-1÷x-1=2利用1的结论求22015+22014++2+1的值3若1+x+x2++x2015=0求x2016的值．
1分Thepoorwomanissocaboutherson'ssafetythatshecouldn'tsleepwellallnight.
结合下列所示实验回答有关问题．1有氨味的气体是2经检验无色溶液C中含有NaCl则可推测出X溶液为溶液．3进一步测定可知无色溶液C的pH＞7向其中加入适量的Na2SO4溶液无现象写出无色溶液C中所含溶质的所有可能情况
如图在△ABC中BF平分∠ABCAF⊥BFD为AB中点连接DF并延长交AC与点E若AB=12BC=20则线段EF的长为
如图一艘轮船在A处测得灯塔C在北偏西15°的方向上该轮船又从A处向正东方向行驶40海里到达B处测得灯塔C在北偏西60°的方向上则轮船在B处时与灯塔C之间的距离即BC的长为
计算-32013·-2011=．
1分WhenIwalkthelittledoginthestreetthismorningitgotlandranaway.
6分Areyouscaredaboutmovinguptoseniorhighschool?Itcanbeanewexperiencebutyoushouldn'tworry.We'veputtogetheraguideonhowtosurvivethefirstweek. You'renotalone Remembereverybodyelseinyouryearisinthesameboat.Theymaynotrealizeitbutthey'rejustasnervousasyouare.Movingtoseniorhighisanopportunitynotaproblem.Thingsaredifferentandallyouneedtodoisbepoliteandlearnthenewrules. Teachersarereadytohelp Ifyou'reunsurewhattodoorareworriedaboutanythingthenyouhadbetteraskforhelp.Teachersareprobablythebestpeopletoturntoasthey'reexperiencedinhelpingnewstudents.Someseniorhighschoolsalsohaveafriendssystem.Ifyourschoolhasthisthenyouwillbepairedwithanolderstudent.Theywilllookoutforyouandhelpyouifyouhaveanyproblemsorquestions. Allchange Therearelotsofdifferencesbetweenjuniorhighschoolandseniorhighschool.You'llhaveahomeworkdiaryorastudentplanner.Youwillhaveyourlessonswithdifferentteachersindifferentrooms.Youwillhavehomeworkfordifferentsubjectsondifferentdayssomakesureyougetorganized.Makesureyouhaveacopyofyourschooltimetablewrittendownsoyouknowwhichroomsyourclassesareinandonwhichdaysyouwillhaveyourdifferentsubjects. Otherpoints Ifyou'vegotanolderbrotherorsisterattheschoolthenaskthemforadvice. Beyourself!Itsoundssimplebutpeoplewillknowyoumuchbetterifyoujustactnaturally. Havingearlynightsmakesadifferenceandyou'llfinditeasiertogetupinthemorning! 33.Whichofthefollowingisclosestinmeaningtotheunderlinedsentence? A.Otherstudentshavesimilarfeelingstoyours. B.Otherstudentshavetolearnboatingwithyou. C.Otherstudentswillhelpyousolveyourproblems. D.Otherstudentswillteachyoupolitenessandnewrules. 34.Thenewstudentsturntoteachersfirstwhenhavingproblemsbecause. A.teacherswon'tblamethemasparentsdo B.teachersaregoodathelpingsolveproblems C.teachersareequaltoeverystudent D.parentsaretoobusytohelpthem 35.What'sthepurposeofthepassage? A.Totellstudentstheimportanceoflearning. B.Towarnstudentsnottoignorefriendshipinseniorhigh. C.Tomakeadifferencewhenmovinguptoseniorhigh. D.Tohelpnewstudentstogetusedtolifeinseniorhigh.
—?—BecauseIthinktheyarereallyscary.A.Whydoyouliketigers B.Whydon'tyouliketigersC.Whydoesheliketigers? D.Whydoesn'theliketigers?
互联网给生活带来极大的方便据报道2016底全球支付宝用户数为4.5亿2018年底达到9亿． 1求平均每年增长率 2据此速度2020底全球支付宝用户数是否会超过17亿请说明理由．参考数据≈1.414
如图ABC分别是小正方形的三个顶点且每个小正方形的边长均为1则sin∠BAC的值为
热门题库
更多
高三下学期数学
高三上学期数学
高一下学期英语
教案备课库
高一上学期生物
高一下学期生物
高二上学期数学
高二上学期物理
高二上学期英语
高二上学期生物
高二下学期数学
高二上学期化学
高二下学期物理
高三下学期物理
高三上学期物理
高三上学期生物
湘公网安备 43130202000226号