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Collection Of Data

Question

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What is meant by random sampling?

Solution

Random sampling is that method of sampling in which each and every item of the universe has equal chance of being selected in the sample.

Some More Questions From Collection of Data Chapter

What are the principal sources of data ?

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.

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