Theory of Sampling

The Theory of Sampling refers to the practice of selecting a representative subset from a larger population to draw conclusions about the entire group. By studying this smaller sample, researchers can make inferences about the whole population without measuring everyone. For example, in polling, a survey of a few hundred voters can provide insights into the opinions of millions. Proper sampling methods ensure that the sample reflects the population's diversity, reducing bias and increasing the validity of the results, which is crucial in fields like statistics, market research, and social sciences.