好词典
representativeness
UK //ˌreprɪˈzentətɪvnəs//US //ˌreprɪˈzentətɪvnəs//
词源
Derived from 'representative' (from Latin 'repraesentativus') + the suffix '-ness', indicating the quality or state of being representative.
noun
❶ 代表性，指某事物或样本能够准确反映整体特征或群体的程度，常用于统计学、社会学等领域。
“The representativeness of the survey sample ensures accurate conclusions about the population.”
（调查样本的代表性确保了关于总体的准确结论。）
“Scientists questioned the representativeness of the data collected from a single region.”
（科学家质疑从单一地区收集的数据的代表性。）
同义词:typicality, characteristicness, exemplariness
常见短语
representativeness heuristic — 代表性启发法，指人们倾向于根据某事物与典型例子的相似程度来判断其概率或类别的一种认知偏差。
“The representativeness heuristic can lead to errors in judgment when making quick decisions.”
（代表性启发法可能导致快速决策时的判断错误。）