The more homogeneous the population, the more confidence we can have in the representativeness of a sample of any particular size.

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Homogeneity refers to the degree to which individuals in a population are similar to each other. When a population is more homogeneous, it is more likely that a smaller sample will be representative of the whole population, as the individuals in the sample are likely to share similar characteristics with the rest of the population. In contrast, a heterogeneous population - where there is more diversity among individuals - may require a larger sample size to accurately represent the population.

The More Homogeneous the Population, the More Confidence We Can