In this paper we have proposed a class of modified ratio type variance estimators for
estimation of population variance of the study variable using the known parameters of the …

In this paper a generalized class of finite population variance is suggested and its large
sample bias and mean square error are derived. Further some special cases of this class …

We have addressed the problem of estimation of finite population variance using known
values of quartiles of an auxiliary variable. Some ratio type estimators have been proposed …

This paper deals with modification of Milton's estimator of population variance using
coefficient of quartile deviation and unknown weight of auxiliary variable. The Bias and …

In this paper, we proposed a ratio cum product estimator for estimating finite population
variance. The proposed estimator was obtained by transforming [MS17] estimator. The bias …

Variance is a natural phenomenon among similar objects in nature and it is one of the
measures of dispersion. Therefore, its estimation is of crucial importance for large …

Estimation of population variance in two-phase (double) sampling is considered using
information on multiple auxiliary variables. An unbiased estimator is proposed and its …

Variation is an inherent phenomenon, whether in natural things or man-made. Thus, it
seems essential to estimate this variation. Various authors have worked in the direction of …

In this paper, some ratio-type estimators for finite population variance have been proposed
using known values of the parameters of an auxiliary variable such as quartiles and their …

This paper deals with the estimation of finite population variance. A class of ratio-type
estimators is proposed for estimation of finite population variance of study variable. The …