In ecological and environmental sampling the quantification of units is either difficult or overly demanding in terms … of the time, money, workload, it requires. For this reason efficient and cost-effective sampling methods need to be … devised for data collecting. The most commonly used method for this purpose is the Ranked Set Sampling (RSS). In this paper, a …

variances in income distribution have been calculated by probability sampling techniques. The variances are compared and …

. Recently, such sequential algorithms have been successful for random sampling problems. Our main contributions to this line of …