Comparing probabilities in urns: A study with primary school students. Uniciencia, [S. l.], v. 35, n. 2, p. 1–18, 2021. DOI: 10.15359/ru.35-2.9. Disponível em: https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/14494.. Acesso em: 18 jul. 2024.