Answer
A sample is used more than a population because it is usually
impractical to obtain the population data.
Work Step by Step
We tend to prefer to have full population data because it is more informative. However, sometimes it is not feasible to obtain population data. So that is why we take a sample of the population to conduct our study or investigation. The sample should be representative of a population so that sample data can be used to form conclusions about that population.
