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Collection of Data
Question
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What are the two methods of data collection ?

Answer

(i) Census method : Under census method information is collected from each individual items of universe.

(ii) Sampling method : In this method, few items of the universe are selected and studied on the basis of the sample and then conclusions about the whole universe are drawn.

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Some More Questions From Collection of Data Chapter

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 ?

What is meant by sample ?

What is meant by sample method ?