Crude birth rate is a simplest measure of fertility because it includes: (A) Mid year population, (B) Total population, (C) Live births only, (D) Pre-term births
Answer is A. Crude birth rate : Number of live births in a year per 1000 mid-year population.
CBR is simplest indicator of fertility : Total mid-year population is not exposed to child bearing thus it doesnot give true idea of fertility of a population.