How is sample method of data collection more scientific as compared to census?

In sampling method, the same data can be collected from many samples. Therefore, it becomes a scientific process to find the best suitable method of sampling and then, to collect the sample which best represents the population. On the other hand, census method does not involve the process of choosing the sample as the data is to be collected from all the items of the population. Therefore, sample method of data collection is more scientific as compared to census method.

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