 Hello and welcome to the session. In this session we are going to discuss the following question and the question says that in our random survey of 3,428 people, 14% said baseball is their favourite spot, what is the margin of sampling error? We know that margin of error is given by plus minus of 1 upon square root of n, where n is the total population with this key idea. We shall proceed to the solution. Here in the question we are given that in our random survey of 3,428 people, 14% said baseball is their favourite spot. So here we are given population that is the total population is given as 3,428, that is here total population which is denoted by n is given as 3,428. And we know that margin of error is given by plus minus of 1 upon square root of n and we need to find margin of sampling error in this question. So margin of error which is equal to plus minus of 1 upon square root of n is equal to plus minus of 1 upon square root of 3,428. And this is equal to plus minus of 1 upon square root of 3,428 is given by 58.54 and this is equal to plus minus of 0.017. Or we can also denote plus minus of 0.017 as plus minus of 1.7%, thus we say that margin of sampling error is given by plus minus of 0.017 or plus minus of 1.7%, which is the required answer. This completes our session. Hope you enjoyed this session.