分析与相关人群的规模、分布和组成及其特征相关的统计数据。对从有充分根据的来源（例如政府人口普查或大型私人数据库）收集的原始数据集进行定量分析。考虑使用初级研究来收集所需的统计数据。使用综合研究（报告、简报和文章）代替原始数据来协助分析。 Analyzing statistical data relating to the size, distribution, and composition of relevant populations, as well as their characteristics. Perform quantitative analysis over raw data-sets gathered from well-founded sources such as government census or large, private databases. Consider employing primary research in collecting required statistics. Use comprehensive studies (reports, briefs, and articles) to assist with the analysis, in place of raw data.