keywords: Sampling techniques, life birth, efficiency, variance criterion.
In this paper, comparative analysis of three different sampling techniques which are simple random sampling, stratified random sampling and systematic random sampling for the estimation of registered life birth were investigated. The real data set for the study was obtained from Seychelles National Bureau of Statistics on the registered life birth between 1986 and 2018. The mean and variance of each sampling technique were computed and their efficiency compared using the variance criterion. The study revealed that simple random sampling is the best as it has the least variance compared with two other sampling techniques under study.