《统计学》课后习题答案。齐延信主编,暨南大学出版社。 .doc
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1、课后习题答案第一章(单项选择题)1-6:CDCBBB第二章(单项选择题)1-5:BACBD 6-10:ABBBA第三章(单项选择题)1-5:CCBCB 6-10:ACBAB第四章一、单项选择题1-5:DCDBB 6-10:ABBCC 11-15:ABABA二、多项选择题1.ACE 2.ACDE 3.ABD 4.BCE 5.BC 6.ACD 7.BDE 8.BCDE 9.AB第五章一、1-5:DBCCA 6-10:BDCBD 11-15:BA DAB二、1ACD 2BD 3BCE 4BC 5BCE 6BE 7AD 8AC 9.BDE 10BCD三、1 23(1)(2)第三季度劳动生产率1.819
2、51221.834(万元/人)4(1)年份200320042005200620072008产量(万件)500550544664700735逐期增长量(万件)_50-61203635累计增长量(万件)_5044164200235环比发展速度(%)_110.0098.91122.06105.42105.00环比增长速度(%)_10.00-1.0922.065.425.00定基发展速度(%)_110.00108.80132.80140.00147.00定基增长速度(%)_10.008.8032.8040.0047.00增长1%的绝对值(万件)_5.005.505.446.447.00(2)年平均产量
3、为615.5万件,年平均增长量为47万件,年平均增长速度为8.01%。5(1)(2)6(1)(2)(3),所以平均增长速度为6.48%7 (年)8(1),(2)(万元),(万元)四(1)从资料可以看出,水产品销售量不仅有季节性变动,而且有较明显的长期增长的趋势,所以需要用移动平均趋势剔法来计算季节指数。采用十二期移动平均趋势剔除,计算出经调整后的112月的季节指数分别为117.35%,97.63%,83.53%,69.33%,59.80%,74.05%,114.40%,152.12%,157.32%,123.12%,79.80%,71.55%。(2)2009年1月的销售量(千吨)2009年2月
4、的销售量(千吨)其余各月依此类推。(3)2009年5月的销售量(千吨)2009年6月的销售量(千吨)其余各月依此类推。第六章一、单项选择题1-5:ABACC 6-10:BACDC 11-13:BDD二、多项选择题1.CD 2.ACD 3.AD 4.CD 5.BDE 6.BDE 7.AD 8.BD 9.CE第七章一、单项选择题1-7:DADBD CA二、多项选择题1.ABD 2.AC 3.BCE 4.ABC 5.ABCD第八章一、单项选择特1-6:CBCBB D二、多项选择题1.CD 2.ABCE 3.BD 4.ADE 5.ABCDE 6.ABCE 7.ACD 8.CD 9.BC以下是大学体验英
5、语综合教程2(第三版)课后翻译答案Unit11. 任何年满18岁的人都有资格投票。(be eligible to, vote)Answer:Anyone over the age of 18 is eligible to vote.2. 每学期开学前,这些奖学金的申请表格就会由学校发给每一个学生。(apply for, scholarship)Answer:A form to apply for these scholarships is sent by the university to every student before the start of every semester.3.
6、遵照医生的建议,我决定戒烟。(on the advice of)Answer:On the advice of my doctor, I decided to give up smoking.4. 公园位于县城的正中央。(be located in)Answer:The park is located right in the center of town.5. 这所大学提供了我们所需的所有材料和设备。(facilities)Answer:The university provides all the materials and facilities we desire.1. 他们花了多年的时
7、间寻找内心的平静,但是收效甚微。(search for)Answer:They spent many years searching for peace of mind, but with little success.2. 这种新药的成功研制已经使许多疾病的治疗发生了根本性的变革。(revolutionize)Answer:The successful development of the new drug has revolutionized the treatment of many diseases.3. 由于这个国家的经济不景气,这家公司濒于破产。(on the edge of)An
8、swer:The company is on the edge of bankruptcy due to the economic depression in the country.4. 大学毕业后他成为了一名护士。他认为护士这一职业可能很有发展前途。(rewarding)Answer:He became a nurse after college. He thought nursing could be a very rewarding career.5. 他像往常一样在文件上签了名。(just as)Answer:He signed his name on the paper just
9、as he has always done it.Unit21. 警察们正忙着填写关于这场事故的各种表格。(fill out)Answer:The policemen are busy fi lling out forms about the accident.2. 我想在还车之前把油箱加满。(fill up, fuel tank)Answer:I want to fi ll up the fuel tank before returning the car.3. 如果你要投诉,最好遵循正确的程序。(follow the procedure)Answer:If you want to make
10、 a complaint, youd better follow the correct procedure.4. 要不是约翰帮忙,我们绝不会这么快就完成实验。(without)Answer:We couldnt have fi nished the experiment so soon without Johns help.5. 暴风雨之后,岸边的人们焦急地搜索湖面以期发现小船的踪迹。(scan for)Answer:After the storm, the people on the shore anxiously scanned the lake for any sign of the
11、boat.1. 这个国家不大,但是在国际事务中它却发挥着重要作用。(play a role)Answer:This country is not big, but it plays an important role in international affairs.2. 正是在我叔叔的帮助下,我得以克服困难,按时完成了任务。(it is . that)Answer:It was with the help of my uncle that I overcame the difficulty and completed the assignment in time.3. 毕业时他决定留在北京,
12、而他最好的朋友却选择了去西藏。(while)Answer:While he decided to stay in Beijing upon graduation, his best friend chose to go to Tibet.4. 在这次校园英语演讲比赛中,我们班的玛丽获得了第三名。(come in)Answer:In this Campus English Speaking Contest, Mary from our class came in third.5. 你应该知道学习弹钢琴需要有时间,有金钱,还要有毅力。(as well as)Answer:You should kn
13、ow that it takes time, money as well as perseverance to learn to play the piano.Unit31. 我发现量入为出地过日子越来越难了。(increasingly)Answer:I find it increasingly difficult to live within my income.2. 现代政治家们都试图以电视讲话来影响普通百姓。(reach out)Answer:Modern politicians try to reach out to ordinary people in their TV speech
14、es.3. 应该帮助学生对人生采取积极的态度。(adopt)Answer:Pupils should be helped to adopt a positive attitude to life.4. 希望全班同学参加这些讨论。(participate in)Answer:Everyone in the class is expected to participate in these discussions.5. 如果你犯了罪就必须受到惩罚。(crime)Answer:If you commit a crime you must expect to be punished.1.儿子的死让老妇
15、人变得麻木痴呆了。(numb)Answer:The old woman was numbed by her sons death.2.身处所有这些烦恼之中,他依然能保持乐观。(in the midst)Answer:In the midst of all troubles, he managed to remain cheerful.3. 虽有困难,他们还是设法坚持试验下去。(carry on)Answer:They managed to carry on their experiments in spite of the difficulties.4.我们必须淘汰不合格的申请人。(weed
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