in statistics, the set of people, animals, or things being studied

The totality of cases that conforms to some designated specifications.

In statistics, the total number of cases about which a specific statement can be made.

Complete set of persons, places, or things under statistical analysis.

The entirety of a defined set of units, eg. the total human population of a village or a state, the total number of plants in a field, the total number of children enrolled at primary schools in a province, etc.

In statistics, the totality of items under consideration. A clearly defined part of a population is called a subpopulation. In the case of a random variable, the probability distribution is considered as defining the population of that variable. The term "population segment" is sometimes used as a synonym for subpopulation. WHO, 1989a

(1) All possible measurements on a part, or on a process throughout history, i.e. A whole set of data. (2) A statistical term referring to the collection of measurements of a characteristic that could be made on the items in a frame or list.