What is stratified sampling?

Solution

The universe is divided into various groups. Each group of population is called stratum. Then a sample is drawn from each straturm at random. These samples combined to form a single sample of the universe.

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 ?

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 ?

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Collection Of Data

What is stratified sampling?

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 ?

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