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What Is Sampling In The Research And Reasons For Sampling?

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Nouman Umar Profile
Nouman Umar answered
Sampling is the process of selecting a sufficient number of elements from the population. So that a study of the sample and an understanding of its properties or characteristics would make it possible for us to generalize such properties or character tics to the population elements. The characteristics of the population such as mean, standard deviations and the population variance are referred to as its parameters. The central tendencies the dispersion and other statistics in the sample of interest to the research are treated as approximation of the central tendencies, dispersions and other parameters of the population. As such, all conclusions drawn about the sample under study are generalized to the population. In other words the sample statistics are used as estimates of the population parameters.

The reasons for using a sample rather than collecting data from the entire population are self-evident. In research investigations involving several hundreds and even thousands of elements, it would be practically impossible to collect data from or test or examine every element. Even if it were possible it would be prohibitive in terms of time, cost and other human resources. Study of sample rather than the entire population is also sometimes likely to produce more reliable results.
Anonymous Profile
Anonymous answered
About reasons of sample in market
Stewart Pinkerton Profile
It is often impractical to measure an entire population, so a representative fraction of that population is chosen, and the results are scaled back up to the full population by extrapolation. Only works if you pick a truly representative sample.
Anonymous Profile
Anonymous answered
 A sampling as implies is a smaller representation of a larger whole. In total universe the selection of some representative of that particular group or caste of whole population is called as sampling. For example, if we want to research on problem housewife or working women, so in a state, tertiary or city there is huge population, we can not contact to all. We would like to choose some women on the bases of acceptance in the whole population of housewives or working women, whose is actual representative of their group. We can explain the characteristic of whole group of housewife or working women by the study of that particular Representative of whole population of housewives or working women.  

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