Several methods can be employed to obtain a representative sample:
1. Random Sampling: This involves selecting individuals from the population in such a way that every individual has an equal chance of being chosen. This method reduces the risk of bias. 2. Stratified Sampling: In this approach, the population is divided into subgroups (strata) based on certain characteristics (e.g., age, gender), and random samples are taken from each stratum. This ensures that all subgroups are adequately represented. 3. Systematic Sampling: Here, you select every nth individual from a list of the population. This method can be effective if the list is randomized.
