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Collection of Data
Question
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Do samples provide better results than surveys ? Give reasons for your answer.

Answer

In sampling method we take a part of the information. A small number of trained investigators can collect the complete data. It is reliable. In the case of doubt enquiries can be undertaken for verification. Follow up is easy. In survey many difficulties are faced when the universe is large. A large number of investigators are required in surveys. In case of doubt it is difficult to unertake the enquiry again for varification follow up is difficult.

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Some More Questions From Collection of Data Chapter

What type of data involves less time and less expenses ?

Define primary data.

Define secondary data.

An investigator has collected the required information by personal interview with the informant. What type of data will it be called ?

An investigator has collected the required information by personal interview with the informant. What type of data will it be called ?

What will be the kind of data published by the Railway Department regarding the progress of railways for an investigator ?

What kind of data are contained in the census of population and national income estimate, for the government ?

In order to know the likings and dislikings of the listeners of the programmes broadcast by the Himachal Akashvani the latter is keen to collect data, which method of collecting data will be suitable for it ?

Name two important sources of secondary data.

What is meant by universe ?