Answer:
Sample
Explanation:
In statistics and quantitative research methodology, a data sample is a set of data collected and the world selected from a statistical population by a defined procedure. The elements of a sample are known as sample points, sampling units or observations
Population will normally be very large and hence collecting all data from population is time consuming, cumbersome, costly and sometimes impossible.
Samples are taken as part of population representing the population selected to predict information about the population as a whole.