the ratio of the number of births per year to the population.

The study of human populations, esp. the study of statistics, such as numbers of births and deaths, the incidence of disease, or rates of…

Birth rate; the ratio of the number of births in a period to the size of the population.

The study of the human population and its composition; (now typically in advertising and market research) spec. (originally U.S.) the study of…

Statistics. The frequency or incidence of marriage within a population.

The probability of surviving to a given age; the proportion of a population that does this.