A simple random sample is a subset of a statistical population where each member of the population is equally likely to be ...
Stratified random sampling is a method of sampling that divides a population into smaller groups that form the basis of test ...
Ants are simple creatures. They live by simple rules: if you see a scrap of food, pick it up; if you see a pile of food, drop the food you are carrying. Out of such simple behaviour, an ant colony ...