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International Journal of Creative and Open Research in Engineering and Management

A Peer-Reviewed, Open-Access International Journal Supporting Multidisciplinary Research, Digital Publishing Standards, DOI Registration, and Academic Indexing.
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ISSN: 3108-1754 (Online)
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Volume 02, Issue 04

Published on: April 2026

THE BELL CURVE IN EVERYDAY LIFE: UNDERSTANDING NORMAL DISTRIBUTION THROUGH EXAM SCORES

Rutuja Nanaji Bhamare

Department of Mathematics & Statistics

Mahila Ratna Pushpatai Hire Mahila Mahavidyalaya Malegaon Maharashtra India

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Plagiarism Passed Peer Reviewed Open Access

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Abstract

The bell curve, or normal distribution, is a fundamental concept in statistics that describes how many natural and social phenomena are distributed around a central value. This paper explores the relevance of the bell curve in everyday life, focusing on accessible example of  exam scores. Exam performance often clusters around an average, with most students achieving moderate results while fewer attain exceptionally high or low scores. By analysing this case, the paper illustrates how the normal distribution provides insights into patterns of variation, fairness in evaluation. Understanding the bell curve helps in interpreting data more effectively, avoiding misjudgments about outliers, and appreciating the balance between commonality and rareness in populations. Beyond academics, the normal distribution underpins decision-making in education, biology, healthcare, and social sciences, making it a vital tool for recognizing order within apparent randomness. This study emphasizes that the bell curve is not merely a mathematical abstraction but a lens through which everyday phenomena can be understood, predicted, and contextualized.

Keywords— Normal Distribution; Bell Curve; Symmetry; Skewness; Kurtosis

How to Cite this Paper

Bhamare, R. N. (2026). The Bell Curve in Everyday Life: Understanding Normal Distribution through exam scores. International Journal of Creative and Open Research in Engineering and Management, <i>02</i>(04). https://doi.org/10.55041/ijcope.v2i4.324

Bhamare, Rutuja. "The Bell Curve in Everyday Life: Understanding Normal Distribution through exam scores." International Journal of Creative and Open Research in Engineering and Management, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijcope.v2i4.324.

Bhamare, Rutuja. "The Bell Curve in Everyday Life: Understanding Normal Distribution through exam scores." International Journal of Creative and Open Research in Engineering and Management 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijcope.v2i4.324.

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References

[1] Lynn Fendler and Irfan Muzaffar, THE HISTORY OF THE BELL CURVE : SORTING AND THE IDEA OF NORMAL, Educational Theory, University of Illinois, Vol  58,2008, page 63-82.

[2] Bluman, A. G. (2017). Elementary statistics: A step by step approach (10th ed.). McGraw‑Hill Education.

[3] Mood, A. M., Graybill, F. A., & Boes, D. C. (1974). Introduction to the theory of statistics (3rd ed.). McGraw‑Hill.

[4] Henil Satra and Remya Lathabhavan, A STUDY ON THE IMPORTANCE OF THE BELL CURVE IN OUR DAILY LIVES, INTERNATIONAL JOURNAL OF  SCIENCE AND INNOVATIVE

ENGINEERING & TECHNOLOGY, ISBN978-93 -5406-579-8, ISSUE VOLUME 6,   May 2020

[5] Lehmann, E. L., & Romano, J. P. (2005). Testing statistical hypotheses (3rd ed.). Springer

 

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  • Peer Review Type: Double-Blind Peer Review
  • Published on: Apr 13 2026
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