TAILIEUCHUNG - What do you think of the opinionpolls?

Tham khảo tài liệu 'what do you think of the opinionpolls?', ngoại ngữ phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | What do you think of the opinion polls Opinion polls What do you think of the opinion polls People often laugh at opinion polls and remember times when they were slightly incorrect. However they often forget all the time when they were accurate. A poll should be conducted very carefully and should sample a crosssection of the population. The cross-section should be selected very carefully so that the right balance of ages sexes and social classes can be achieved. At first it was very difficult for many people to accept that a sample of one or two thousand could reflect accurately the views of millions but polls have now proved themselves. However polls should not claim to do what they are not intended to do. The findings should always be examined very carefully before predictions are made with any degree of certainty. Money is the instrument of exchange helping in buying and selling and also in fixing a value on things and commodities. It may be in metal or in paper. With the market getting more and more complicated there are other negotiable instruments which are as good as the minted coins or the printed notes. Money gives purchasing power but this power is not absolute as it is on various factors. In such a case it is termed currency and according to their purchasing power they are termed hard soft and weak. Though coins and notes are issued by the Government of the country there is a limit to their .

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