title: A probability model for number of births and its application in estimation of fecundability for a heterogeneous population.
abstract: "Under some simple assumptions relating to the human reproduction process, an extension of a probability model describing the variations in the number of births to a female during a specified period of time (O, T) of length T, is proposed.  The model is extended to a situation when the female population consists of two distinct groups with respect to fecundability.  A procedure of estimation of some of the underlying parameters is given.  The applicability of the model is illustrated with an observed distribution."  Data for the illustration are from a population survey undertaken in Varanasi, India, in 1978.
authors.forename: B N
authors.initials: BN
authors.lastname: Bhattacharya
authors.forename: D C
authors.initials: DC
authors.lastname: Nath
mesh_terms: D001208:Asia; D003710:Demography; D003906:Developing Countries; D005298:Fertility; D007194:India; D008962:Models, Theoretical; D011153:Population; D011157:Population Dynamics; D011336:Probability; D012098:Reproduction; D012106:Research; D013223:Statistics as Topic; D013997:Time Factors
keywords: Asia; Demographic Factors; Developing Countries; Estimation Technics; Fecundability; Fecundity; Fertility; India; Mathematical Model; Models, Theoretical; Population; Population Dynamics; Probability; Reproduction; Research Methodology; Southern Asia; Statistical Studies; Studies; Time Factors