two questions, can u help?/大全-5-19，大全-5-20

wujie_ren

Two questions

Recent estimates predict that between 1982 and 1995 the greatest increase in the number of people employed will be in teh categorty of low-paying service occupations. This category, however, will not increase its share of total employment,whereas the category of high-paying service occupations will increase its share.

If the estimates aboove are accurate, which of the following conclusions can be drawn?

A, In 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

B.In 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

C.Nonservice occupations will account for the same share of total employment in 1995 as in 1982

D.Many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995

E.The rate of growth for low-paying service occupations will be greater than the overall reate of employment growth between 1982 and 1995

The answer is A.Why?

For a local government to outlaw all strikes by its workers is a costly mistake,Because all its labor disputes must then be settled by binding arbitration, without any negotiated public sector labor settlements guiding the arbitrators. Str4ikes should be outlawed only for categories of public-sector workers for whose serices no acceptable substitute exists.

The statements above best support which of the following conclusions?

A.Where public-service workers are permitted to strike, contract negotiations with those workers are typically settled without a strike.

B.Where strikes by all categories of public-sector workers are outlawed, no acceptable substitutes for the services provided by any of those workers are available.

C.Binding arbitration tends to be more advantageous for public-sector workers where it is the only available means of settlinglabor disputes with such workers.

D.Most categories of public-sector workers have no counterparts in the private sector.

E.A strike by workers in a local government is unlikely to be settled without help from and arbitrator.

The answer is C. Why?

lawyer_1

两道题都较难

1.纯粹数学计算。设A为LOW-PAYING人数（1982），增加倍数为X。B为HIGH-PAYING（1982），增加倍数为Y。

则在1982， LOW-PAYING的SHARE为：A/（A+B），

在1995，LAW-PAYING的SHARE为：XA/（XA+YB）

又因1982-1995，SHARE减少，故A/（A+B）大于XA/（XA+YB），可推出Y大于X，即B增加倍数大于A

而原文知B增加人数少于A。所以B必小于A（增加倍数大，但增加的人数却少，必是基数小）

所以选A

2。几天前讨论过。我已详细解释过，见主题为：大全t5-20. 最后更新是6月8日

[此贴子已经被作者于2004-7-1 23:32:28编辑过]

wujie_ren

thanks, you are great!

i have two more questions if you can , thanks!

P101/18

US ad agencies are increasingly using interviews at shopping malls, called mall intercepts, to test for ad effectiveness, product concept viabillity, and consumer buying habits. Critics of mall intercepts maintain that the shopping habits of mall shoppers are not representative of those of the larger population.

Which of the following would provide evidence that most supports the critics’ claim about mall intercepts?

A, some mall shoppers patronize more than one store in any given shopping trip.

B, Mall shoppers, on average, spend 50 percent more time shopping than shoppers at other locations do.

The key is B, but I choose A, my reason is the same person could be interviewed more than one time if he patronize more than one store, so he can’t represent others, but himself.

But have no clue of B??? any idea?

P110/36

There is a great deal of geographical variation in the frequency of many surgical procedures-up to tenfold variation per hundred thousand between different areas in the numbers of hysterectomies, prostatectomies, and tosillectomies.

To support a conclusion that much of the variation is due to unnecessary surgical procedures, it would be most important to establish which of the following?

B, the variation is unrelated to factors (other than the surgical procedures themselves) that influence the incidence of diseases for which surgery might be considered.

The key is B, but no quite sure the line of reasoning in it, thanks in advance.

fish_j

Recent estimates predict that between 1982 and 1995 the greatest increase in the number of people employed will be in teh categorty of low-paying service occupations. This category, however, will not increase its share of total employment,whereas the category of high-paying service occupations will increase its share.

If the estimates aboove are accurate, which of the following conclusions can be drawn?

A, In 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

B.In 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

C.Nonservice occupations will account for the same share of total employment in 1995 as in 1982

D.Many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995

E.The rate of growth for low-paying service occupations will be greater than the overall reate of employment growth between 1982 and 1995

我觉得这样理解应该方便一点：

他的总人数是不变的，但是高收入的人增加了（结论）

  那只可能是低收入的人减少了，那自然而然高收入的人就增加了。

fish_j

US ad agencies are increasingly using interviews at shopping malls, called mall intercepts, to test for ad effectiveness, product concept viabillity, and consumer buying habits. Critics of mall intercepts maintain that the shopping habits of mall shoppers are not representative of those of the larger population.

Which of the following would provide evidence that most supports the critics’ claim about mall intercepts?

A, some mall shoppers patronize more than one store in any given shopping trip.

B, Mall shoppers, on average, spend 50 percent more time shopping than shoppers at other locations do.

这个题目容易，你想，一些人去多的商店和购物习惯有关系吗？我们说的是买东西的习惯呀，明显的b告诉我们这个地方的人比其他地方的人多花钱，也就是买东西多买点什么，那不是一种购物习惯吗？明显就说明他们和大部分人的不一样呀。这样不就是说明了这个不具有代表性吗？（罗嗦了点，呵呵！）

lawyer_1

18.选项找出一个说明这些人和别人不一样就可以，是一个和别人比较的概念，从而使之没代表性。A没有比较的概念，B将这些人和别人比，故是答案

36。没能看清楚题目，能否POST清楚点，特别是断句

to fish_j:    "他的总人数是不变的". 原文是得不出这个信息的

iceboy

楼主请您不要这样发贴. 问题单独发, 表明题目编号. 方便查找和汇总. 谢谢.

希望有同样疑问的朋友也能看到LAWYER_1兄的精彩解答. 谢谢您的理解.

http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=39151&page=1

Dear every gamter,

First of all, after working 20 hours, I finish the questions link and am glad to share with you. The questions are sorted by increase order of LSAT, Section, and Question number.
Second, because of the various formats of problems in bollitin board, such variety costs me too much time to locate every question in 大全 composed by Gemj; I wanna suggest a uniform format of title when you post your question. According to current materials available, you might as well obey the following rules.
1.OG format: OG-题号 （标号以OG为准）
2.LSAT format：L28-3-1表示LSAT28套-Section3-Question1; L2002/10-3-1表示LSAT2002年10月-Section3-Question1（标号以Gemj大全为准）
3.大全GMAT format: M-2-1表示大全GMAT部分第2套-Question1(标号以大全为准）
4.FeiFei format: F-题号
5.GRE format: G-N4-3-1表示GRE-N4-Section3-Question1；G-G90-3-1表示GRE-国内90年-Section3-Question1
According above rules, your problems can be located smoothly and unambiguously. And it will assist other gmater to search.
Last but not least, I wish you a good luck