Mojeed Abiodun Yunusa, Adejumobi, A. and Ahmed Audu 2023. A Modified Ratio Estimator in the Presence of Tri-Mean and Interquartile Range for the Estimation of Population Variance. LC International Journal of STEM (ISSN: 2708-7123). 3, 4 (Jan. 2023), 40-50. DOI:https://doi.org/10.5281/zenodo.7607106.