Description: Sample size refers to the number of observations or replicas included in a statistical sample, which can affect the reliability of the results. In the field of data visualization, sample size is crucial as it determines the representativeness of the analyzed data and, consequently, the validity of the conclusions drawn. An adequate sample size allows capturing the variability of the population and minimizing sampling error, resulting in more accurate and meaningful visualizations. Conversely, a sample size that is too small can lead to erroneous inferences and a biased interpretation of the data. In practice, sample size is chosen based on several factors, such as the study’s objective, the heterogeneity of the population, and available resources. In summary, sample size is a fundamental element in statistics and data visualization, as it directly influences the quality and credibility of the analyses conducted.
