Improved Ratio Type Estimator Using Two Auxiliary Variables under Second Order Approximation
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: Mathematical Journal of Interdisciplinary Sciences
سال: 2014
ISSN: 2278-9561,2278-957X
DOI: 10.15415/mjis.2014.22014