Assistant Professor of General Surgery, Islamic Azad University of Medical Sciences, Tehran Branch
Abstract
The execution of scientific research necessitates the diligent collection of relevant information. Data collection methodologies can be broadly classified into two categories: a census, which entails gathering information from the entire population, and sampling, which involves selecting a subset from that population. Accessing the entirety of a population can often be challenging, costly, and time-consuming, prompting researchers to favor sampling methods. Within the realm of statistics, sampling plays a pivotal role in evaluating hypotheses regarding the characteristics of a population.
