Abstract
Objective: To critically examine the behavior of the Excel 365 functions MODE, MODE.SNGL, and MODE.MULT when applied to amodal, unimodal, and polymodal datasets, analyzing the mismatch between the statistical definition of the mode and its computational implementation in a tool widely used in educational contexts.
Methodology: A qualitative study of an analytical-conceptual nature was conducted, based on three complementary procedures: documentary analysis of Excel’s statistical functions, computational experimentation using ten simulated datasets, and comparative analysis with responses generated by Copilot. As a technical counterpoint, a custom VBA function was also developed to explicitly identify different types of mode.
Results: The tests showed that Excel does not explicitly recognize amodality, returning the error #N/A, and presents limitations in representing ties of maximum frequency, particularly when it relies on automatic cell expansion in the MODE.MULT function. In contrast, Copilot correctly identifies polymodal situations and explicitly explains the statistical reasoning involved. The VBA function developed in this study demonstrated that it is technically feasible to align computational implementation with the formal statistical definition.
Conclusions: The results indicate that implementation decisions embedded in digital tools may generate conceptual tensions in statistics education when their outputs are interpreted as equivalent to formal mathematical definitions. The analysis reinforces the need for critical use of computational technologies in educational contexts and highlights the importance of making explicit the conceptual assumptions that guide the technological mediation of statistical knowledge.
References
ARTIGUE, M. Learning mathematics in a CAS environment: The genesis of a reflection about instrumentation and the dialectics between technical and conceptual work. International Journal of Computers for Mathematical Learning, 7(3), 245–274. (2002). https://doi.org/10.1023/A:1022103903080.
BATANERO, Carmen. Didáctica de la Estadística. Granada: Universidad de Granada, 2001.
CHEVALLARD, Y. La transposition didactique: Du savoir savant au savoir enseigné. Grenoble, France: La Pensée Sauvage. (1991).
DRIJVERS, P., Ball, L., Barzel, B., Heid, M. K., Cao, Y., & Maschietto, M. Uses of technology in lower secondary mathematics education: A concise topical survey. ZDM – The International Journal on Mathematics Education, 45(1), 97–119. (2013). https://doi.org/10.1007/s11858-012-0426-1.
Garfield, J. The challenge of developing statistical reasoning. Journal of Statistics Education, 10(3). American Statistical Association. (2002). Disponível em: http://jse.amstat.org/v10n3/garfield.html.
GONÇALVES, Rafael Alberto; MEDEIROS, Jonas de. O uso de planilhas eletrônicas de cálculo no processo pedagógico. In: BAGAI, Caroline (org.). Cultura digital: novas relações pedagógicas para aprender e ensinar. v. 1. Curitiba: Editora Bagai, 2020.
GONÇALVES, R. A & MEDEIROS, J. de. (2020). Planilhas eletrônicas de cálculo: Inconsistências, erros e divergências. In E. R. Martins (Org.), Ciência da computação e tecnologias digitais: contribuições na solução de problemas. Bagai. 2020. (pp. 72–84).
GONÇALVES, Rafael Alberto; HORNBUG, Anderson Michel. Erro matemático na função "MODO" (Moda) do programa Microsoft Excel, suas implicações e possíveis correções. Revista Aracê, São José dos Pinhais, v. 7, n. 1, p. 2248‑2257, jan. 2025. DOI: https://doi.org/10.56238/arev7n1-135.
MCCULLOUGH, B. D. Assessing the reliability of statistical software: Part I. The American Statistician, v. 54, n. 4, p. 358–366, 2000.
MCCULLOUGH, B. D. Assessing the reliability of statistical software. The American Statistician, 59(2), 149–159, 2005.
MOORE, D. S. New pedagogy and new content: The case of statistics. International Statistical Review, 65(2), 123–165. (1997). https://doi.org/10.2307/1403775.
MOORE, D. S., MCCABE, G. P., & CRAIG, B. A. Introduction to the practice of statistics (9th ed.). New York, NY: W. H. Freeman and Company. (2017).
SELWYN, N. Education and technology: Key issues and debates. London, UK: Continuum International Publishing Group. (2011).
SKOVSMOSE, O. Towards a philosophy of critical mathematics education. Dordrecht, Netherlands: Kluwer Academic Publishers. (1994).
TRIOLA, M. F. Elementary statistics (13th ed.). Boston, MA: Pearson. (2018).
VALENTE, José Armando. Informática na Educação: teoria e prática. Campinas: UNICAMP, 1999.
WILD, C. J.; PFANNKUCH, M. Statistical thinking in empirical enquiry. International Statistical Review, v. 67, n. 3, p. 223–248, 1999.

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