When data is collected from all the members of population the study is called?
جب آبادی کے تمام ارکان سے ڈیٹا اکٹھا کیا جاتا ہے تو اسے مطالعہ کہا جاتا ہے؟
Explanation
When data is collected from all the members of a population, the study is called a "Census study."
