Stabilities of estimators of the population total and stabilities of their variance estimators are compared for the following methods of sampling two units per stratum: (a) the I.P.P.S. (inclusion ...

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a portfolio’s asset allocation.

We further provide the MVU estimators for the probability and distribution functions of the GPSD and consider a few special cases of some practical significance. The purpose of the Institute of ...