sampling is a waste of time
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Sampling and Non sampling errors
They include: Simple random sampling, Systematic sampling, Stratified sampling, Quota sampling, and Cluster sampling.
Random Sampling.
Sampling errors are errors in the data collected during the carrying out of quantitative data surveys. They can occur for various reasons, e.g. surveys that were incorrectly filled out. It is generally said that a survey needs to have a margin of error of under 3% to be statistically significant.
census is conducted for group data so if it is a sampling data is taken it would lead to lot of non sampling errors