1. Studying a group of participants selected from the population that are measured and analysed. 2. to carry out a survey. To do a study by selecting a sample from a population to know the opinion of people on some issue.
1. Studying a group of participants selected from the population that are measured and analysed. 2. to carry out a survey. To do a study by selecting a sample from a population to know the opinion of people on some issue.