Population vs Sample / Sampling Methods

The entire group of objects or individuals considered for a survey.

A part of a group being surveyed.

Population refers to the entire group, while a sample is a subset of that group.

A sampling method where every individual and every subset of the sample size has an equal chance of being selected.

A sampling method that divides the population into subgroups (strata) and randomly samples from each stratum.

A sampling method where the population is divided into clusters, and entire clusters are randomly selected.

A sampling method that involves selecting groups (clusters) and then randomly sampling within those groups.

To obtain a representative subset of a population for analysis.

To ensure accurate data analysis and conclusions can be drawn from the sample to the population.

A non-random sampling method where individuals are selected based on ease of access.