“Enhancing Students’ Understanding of Variance Estimation through the Lens of the Bias-Variance Trade-Off: From Sample Variance to Improved Insight ”. International Journal on Engineering, Science and Technology 7, no. 2 (December 31, 2025): 160–192. Accessed January 1, 2026. https://ijonest.net/index.php/ijonest/article/view/6142.