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某学习小组的五名同学在一次数学竞赛中的成绩分别是94分、98分、90分、94分、74分，则下列结论正确的是（ ）
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某数学兴趣小组6名成员通过一次数学竞赛进行组内评比他们的成绩分别是899291939691则关于这
中位数是92.5
平均数是92
众数是96
方差是5
一次数学测试中某学习小组5人的成绩分别是120100135100125则他们成绩的中位数是．
一次数学测验第二小组五位同学的分数分别是78分96分84分88分94分这一小组同学的平均分是多少分
小明和小聪最近5次数学竞赛测验的成绩如下小明7685798773小聪78827980811两位同学的
在一次数学测试中某学习小组5人的成绩单位分是6293949898.则这个学习小组测试成绩的标准差约是
某学习小组的五名同学在一次数学竞赛中的成绩分别是94分98分90分94分74分则下列结论正确的是
平均分是91
中位数是90
众数是94
极差是20
一次数学测验后王老师把某一小组五名同学的成绩简记为+10分-5分0分+8分-3分通过计算知道这五名同
小芳与四名同学一起参加数学竞赛那四名同学成绩分别为78分91分82分79分小芳成绩比五人的平均成绩
一次数学测验中某小组五位同学的成绩分别是110105909590则这五个数据的中位数是
90
95
100
105
在一次数学竞赛中某小组6名同学的成绩单位分分别是697586929588．这组数据的中位数是
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86
92
87
某学习小组有6人在一次数学测验中的成绩分别是1151001059010585则他们成绩的极差和众数
30和115
30和105
20和100
15和105
数学小组五名同学在一次测试中的数学成绩分别为98969710099则该小组五名同学该次测试数学成绩
一次数学测验中某小组五位同学的成绩分别是110105909590则这五个数据的中位数是
90
95
100
105
在一次数学模拟考试中小明所在的学习小组7名同学的成绩分别为129136145136148136150
145，136
140，136
136，148
136，145
某同学五次考试的数学成绩分别是120129121125130则这五次考试成绩的方差是.
在一次数学竞赛中某小组6名同学的成绩单位分分别是697586929588.这组数据的中位数是
79
86
92
87
一次数学测验中某小组七位同学的成绩分别是90859095908595．则这七个数据的众数是．
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82
85
88
96
某学习小组有8人在一次数学测验中的成绩分别是1021151001059210585104则他们成绩的
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为了缓解上学时校门口的交通压力某校随机抽取了部分学生进行了调查来了解学生的到校方式并根据调查结果绘制了如下统计图表 某校学生到校方式抽样调查统计表 到校方式 学生人数 乘车 90 骑车 m 步行 20 其他 50 根据统计图所提供的信息解答下列问题 1本次抽样调查中的样本容量是m＝ 2扇形统计图中学生到校方式是“步行”所对应扇形的圆心角的度数是 3若该校共有1500名学生请根据统计结果估计该校到校方式为“乘车”的学生人数 4现从四名采取不同到校方式的学生中抽取两名学生进行问卷调查请你用列表或画树状图的方法求出正好选到到校方式为“骑车”和“步行”的两名学生的概率．
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10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处错误每句中最多有两处.错误涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 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. Ladiesandgentlemen Youarewelcometoourschool.NowIwouldlikelytointroduceournet﹣schooltoyou. Ournet﹣schoolisveryhelpfullyinmanyways.Firstitmakesbothteachingandlearningeasierandmuchinteresting.Studentscangetmoreknowledgesinclass.Whoeverhaveacomputercanhavethelessonswegiveathome.Secondit'saccessibleforbothteachersandstudents.WecanmakegooduseoftheInternetsendinge﹣mailssearchinganyinformationweneed.Thirdthenetalsohelpsimproveourschoolmanagementbutmeettheneedsofthemoderneducation.Atlastasakeyschoolinourcityitsetsagoodexampletothenewly﹣builtschoolsandmaybeofsomehelptoit. That'sall!Thankyou.
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6分OnedayIdrovewithmywifetospendaweekendwithmymotherlivinginthecountryside.WhenIarrivedhowevershewasn'tathome.SoIdecidedtohangoutwithouroldneighborMr.Brownwhoisafantasticwoodworker.WhenImethimhewasbuildingasmalltableinhisworkshop. Italkedwithhimforaboutforty﹣fiveminutes.DuringthatperiodoftimeIalsohelpedhimdosomesimplework.Ifoundhehadallkindsoftoolsintheworkshop.Itwasthosetoolsthathelpedhimtocreatebeautifulpiecesoffurniture. Weknowthattoolsusedbyprofessionalscanservethepurposesofeasingtheworkprocessorhelpingbeautifytheresults.Morethanlikelywe'vemadeuseoftoolstoimprovethecraftingandcompleteprojects.We'reallgratefulforcalculatorscomputersandsmartphonesfortheconveniencetheyoffer.AlongwiththesedevicesIthoughtaboutthevariousmethodsandskillsI'velearnedandintegrated融入intomydailylifeovertheyears. Ifthereisaspecificaspectofyourlifethatyoucannotovercomeperhapsyoujustneedatoolorpracticetomaketheenergyproducemuch﹣neededpower.Ifyou'restrugglingwithweightissuesorfinancialproblemstherearesomepracticalenergeticapplicationsyoucanlearn.Thesespiritualtoolscanincreaseyourability.Choosealternatethoughtsactionsandsolutions.Remembertheseareavailable. Giveyouanideaofhoweasysomeofthesepracticesare.Myten﹣year﹣olddaughterusesthematleastthreetimesaday.Forexamplewhentensionariseswithinherfriendshipcircleorifsheneedstorememberananswerforatestsheopensheronesmallboxofcandiesandcallsuponthemforassistance.Withthesetoolsshebecomessmarttocreatechangeandachievebetterresults. 1Whydidtheauthorgotothecountryside? A.Tohaveashorttrip. B.Tohaveatalkwithanoldneighbor. C.Topayhismotheravisit. D.Tolearntomakefurniturefromawoodworker. 2AccordingtotheauthorwhatmadeMr.Browncreatebeautifulfurniture? A.Theassistanceofhistools. B.Hisspecialtalents. C.Heauthor'stimelyhelp. D.Thecooperationwithothers. 3Whatisthethirdparagraphmainlyabout? A.Theachievementsofscience. B.Theimportanceoftoolsanddevices. C.Thebenefitsofapplyingtechnologytolife. D.Theconvenienceofmodernlife.
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