Penaksir Rasio-Cum-Dual Untuk Variansi Populasi Pada Sampling Acak Sederhana

This article discusses three estimators for estimating population variance in simple random sampling i.e. ratio estimator, dual ratio estimator and ratio cum dual estimator which is a review of the article of Yadav and Kadilar [Journal of Reliability and Statistical Studies, 6 (2013): 29-34]. These there estimators are all biased, and MSE (mean square error) of each estimator can be obtaine…