PERFORMING PRACTICAL TASKS ON THE NUMERICAL CHARACTERISTICS OF RANDOM VARIABLES. International Journal of Political Sciences and Economics, [S. l.], v. 5, n. 02, p. 366–369, 2026. DOI: 10.55640/. Disponível em: https://ijmri.de/index.php/ijpse/article/view/5704. Acesso em: 25 feb. 2026.