题目内容
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Statistics from the poll indicate ______.
A．a downward turn in the economic conditions
B．the great impact of bad news on economic situation
C．a dwindling confidence in the economic prospects
D．how Americans have lost their traditional optimism
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更多“Statistics from the poll indic…”相关的问题
We can see from the available statistics that the ______.
A．the current financial status of Oxford results from its being state-funded
B．radical reforms concentrate on Oxford management structure
C．Oxford independence might become a barrier to its recruiting good dons
D．notorious reputation results in Oxford meeting of Congregation held this week
Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum or the data may represent qualitative variable, such as sex, college major, or personality type.
Large masses of data must generally undergo a process of summarization or reduction before they are comprehensible. Descriptive statistics is tool for describing or summarizing or reducing to comprehensible form. the properties of an otherwise unwieldy mass of data.
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficient to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.
Which of the following are counting and describing associated with？
A．Descriptive statistics
B．Unknown variables
C．Qualitative changes
D．Inferential statistics
A.written
B.spoken
C.descriptive
D.prescriptive
Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum—or the data my represent qualitative variables, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reducing to comprehensibly form. the properties of an otherwise un- wieldy mass of data.
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficiency to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.
What is the passage mainly concerned with？
A．Development and application of statistics.
B．Origin of descriptive statistics.
C．Limitations of inferential statistics.
D．Importance of statistics.
What jobs have typically been held by women？
A．Jobs as doctors and lawyers.
B．Jobs in service industries.
C．Jobs in areas without sex discrimination.
D．Jobs in areas where women are respected.
However, it is very rare that an exporter can sell his products directly to his remote overseas customers. It is impossible for the exporter to go to every country to find out whether his products can sell in a particular market. Therefore, market research is useful both for the newly established trading companies to open business relations with overseas customers, and for the established exporters who have regular customers to expand their business.
First of all, the exporter should use trade statistics published by most countries to narrow down the scope of his research. Important information sources include: the national trade statistics which indicate the number of wholesalers, retailers and other kinds of marketing intermediaries(classified information according to the type of products) , trade journals and directories and international organizations such as International Chamber of Commerce, and China Council for the Promotion of International Trade.
After carefully considering the above information sources, the exporter will find out what countries are now importing his type of products and from what sources. He can judge the amount of business and the rate of growth or decline. Then he may choose a number of target markets.
Secondly, the exporter must bear in mind the cultural and social backgrounds of his target market, such as language, religion and local people's aesthetical viewpoints, etc. Since all these elements influence people's consumption pattems, a deep understanding of them will help the exporter to predict the changes and follow the new market trend.
Thirdly, the exporter must know the relevant government policies: What kinds of products are limited or restricted in import activities？ Are they restricted because of shortage of foreign currency, tendency to protect national industries or sanitation demand？ What kind of goods does the government levy high tax against？
Fourthly, geography may influence profoundly on the distribution of goods and the development of sales channel in a country. Temperature, altitude and humidity extremes may affect the proper functioning of some equipments. Products which function well in temperate zones do not always perform well in tropical areas. With regard to products like timber, food and paper, the amount of water absorption in transit can be very influential.
Finally, the exporter must take into account the political risk-whether there are military clashed, distribution systems-whether seaports, railroads and roads are available. Moreover, the exporter must know the local legal system since no single, uniform international commercial law governing exporting transactions exists.
Questions for reading :
Lyne Brown was once the headmaster of an elementary school. She said, "A lot of kids had chains around their necks with keys attached.! was constantly telling them to put them inside shirts. There were so many keys, it never came to my mind what they meant. ",slowly, she learned they were house keys.
Lyne learned of the impact working couples and single parents were having on their children. She found that Fear is the biggest problem faced by children at home alone. Many had nightmares and were worried about their own safety.
The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They'll often play it at high volume. It's hard to get statistics (情况，材料) on latchkey children. Most parents are slow to admit they leave their children alone.
The main idea about "latchkey children" is that they______.
A．are growing in numbers
B．are also found in middle-class neighborhoods
C．watch too much television during the day
D．suffer problems from being left alone
A few decades ago, the world banking community invented new Electronic Funds Transfer (EFT) systems to move money more efficiently across countries and around the globe. The【1】benefit of such systems was to【2】the float of capital that was unavailable for use【3】 checks were being cleared through banking【4】Today, we understand that the benefits of electronic banking are far more【5】than just reducing floating cash. The entire world of banking【6】revolutionized. It is【7】more efficient and faster, but also more global. And now【8】the Internet, EFT systems are increasingly【9】with the new world of e-commerce and e-trade.
【10】1997 and 2003, EFT value【11】from less than $50 trillion to nearly $400 trillion, more than the【12】economic product of all the countries and territories of the entire world. These statistics【13】should emphasize the true importance of transnational EFT. Satellite, wireless, and cable-based electronic fund transfers【14】the hub of global enterprise. Such electronic cash is【15】central to the idea of an emerging "worldwide mind". Without the satellite and fiber infrastructure to support the flow of electronic funds, the world economy would grind to a halt.
(1)
A．hiding
B．getting
C．driving
D．giving
One of the most important figures for Gordon Brown when presenting his pre-election budget on March 16th was the current-budget balance. This is the gap between current revenues and current spending. It matters to the chancellor of the exchequer(财政部长) because he is committed to meeting his own "golden rule" of borrowing only to invest, so he has to ensure that the current budget is in balance or surplus over the economic cycle.
Mr. Brown told MPs that he would meet the golden rule for the current cycle with & 6 billion ($11.4 billion) to spare—a respectable-sounding margin, though much less than in the past. However, the margin would have been halved but for an obscure technical change announced in February by the Office for National Statistics to the figures for road maintenance of major highways. The ONS said that the revision was necessary because it had been double-counting this spending within the current budget.
If this were an isolated incident, then it might be disregarded. But it is not the first time that the ONS has made decisions that appear rather convenient for the government. Mr. Brown aims to meet another fiscal rule, namely to keep pubic net debt below 40% of GDP, again over the economic cycle. At present he is meeting it but his comfort room would be reduced if the & 21 billion borrowings of Network Rail were included as part of public debt. They are not thanks to a controversial decision by the ONS to classify the rail-infrastructure corporation within the private sector, even though the National Audit Office, Parliament's watchdog, said its borrowings were in fact government liabilities.
This makes it particularly worrying that the official figures can show one thing, whereas the public experiences another. One of the highest-profile targets for the NHS is that no patient should spend more than four hours in a hospital accident and emergency department. Government figures show that by mid-2004, the target was being met for 96% of patients. But according to a survey of 55,000 patients by the Healthcare Commission, an independent body, only 77% of patients said they stayed no more than four hours in A&E.
One way to help restore public confidence in official statistics would be to make the ONS independent, as the Conservatives and Liberal Democrats have suggested. Another would be for the National Audit Office to assess how the government has been performing against targets, as the Public Administration Committee has recommended.
It can be inferred from the first paragraph that
A．the British politicians are often compared to boxers by the people.
B．it is a common practice that the government plays with figures.
C．people often overestimate the credibility of official statistics.
D．the Labor government usually underestimate its official figures.
Passage Three
For more than six million American children, coming home after school means coming home to an empty house. They spend part of each day alone. They are called "latchkey children". They're children who look after themselves while their parents work. And their bad conditions have become a social problem.
Lyne Brown was once the headmaster of an elementary school. She said, "A lot of kids had chains around their necks with keys attached.! was constantly telling them to put them inside shirts. There were so many keys, it never came to my mind what they meant. ",slowly, she learned they were house keys.
Lyne learned of the impact working couples and single parents were having on their children. She found that Fear is the biggest problem faced by children at home alone. Many had nightmares and were worried about their own safety.
The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They'll often play it at high volume. It's hard to get statistics (情况，材料) on latchkey children. Most parents are slow to admit they leave their children alone.
41. The main idea about "latchkey children" is that they______.
A. are growing in numbers
B. are also found in middle-class neighborhoods
C. watch too much television during the day
D. suffer problems from being left alone
