 Hello and welcome to the session. In this session we are going to discuss the following question and the question says that A hospital is interested in finding out whether the people are aware of child vaccination. They distributed 500 questionnaires to people living in the town, identify the sample and determine the population from which it was selected. We know that population is the entire group of people or objects and sample is a part of the population. With this the idea we just proceed to the solution. Now in this question we are given that a hospital distributed 500 questionnaires to people living in the town since it was interested in knowing whether the people are aware of child vaccination or not. And from the key idea we know that population is the entire group of people or objects and sample is a part of the population. So here the population is all the people living in the town the sample is the 500 people who received the questionnaire. So we got the population as all the people in the town and the sample is 500 people who received the questionnaire. This completes our session. Hope you enjoyed this session.