Sampling from a defined set of things (population) is done to get an idea (infer) what the entire population selected is like. One cannot look at the entire group of things as it is not feasible so a small portion (sample) is judged mathematically to make an inference about the entire unit. This is what we do in our experimental section of a science thesis. The sampling method is very important based on it we get data and judge/support the hypothesis in our thesis report. Basically a sampling method helps to derive a small sample which is...

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