Weighted Least Squares Regression on Some Selected Micro-Economic Variables: Page 1- 7. KASU JOURNAL OF MATHEMATICAL SCIENCE (Maths Access), [S. l.], v. 5, n. 2, 2025. Disponível em: https://mathsaccess.org.ng/index.php/kjms/article/view/4. Acesso em: 10 jun. 2026.