A representative (random) sample of 3 students can be taken out of 10 through lottery
method. The names of all the 10 students of the class are written on 10 separate pieces of paper of equal size and all the slips are folded in a similar manner. These slips are then mixed well and 3 slips with these names are selected one by one, so that all the students have equal chance of being selected in the sample.
Ahaan has a report about the smoking habits of the students in the colleges of University of Delhi.
He has limited resources in terms of money and manpower. Further he has to complete his work as early as possible. Advise Ahaan, how he should proceed?