1.
Zaragoza Alvarado GA , editor. Grouping to understand: how to analyze data when it comes in intervals. In: Descriptive Statistics Handbook: Definition and Exercises [Internet]. Editorial PLAGCIS; 2025 [cited 2026 Nov. 6]. pp. 44-8. ( , editor. Education and Society). Available from: https://plagcis.org/book/index.php/editorial/catalog/book/25/chapter/60