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...Scholars journal of physics mathematics and statistics abbreviated key title sch j phys math stat issn print online homepage https saspublishers com improved estimation population variance utilizing known auxiliary parameters shiv shankar soni himanshu pandey department ddu gorakhpur university civil lines uttar pradesh india doi sjpms vi received accepted published corresponding author abstract original research article even similar things whether created artificially or naturally can vary we should therefore try to estimate this variation for propose a searls ratio type estimator in the current employing data on tri mean third quartile variable up first degree approximation suggested s bias squared error mse are determined characterising scalar ideal value is discovered given least errors competing estimators contrasted conceptually experimentally that it has lowest above recommended been shown be most effective keywords main variables pre copyright an open access distributed under t...