What does the crude birth rate measure?

The crude birth rate is a demographic indicator that quantifies the total number of live births in a given year for every 1,000 people in a population. This measure provides insight into the population growth of a particular area and is essential for understanding trends in population dynamics. By considering the total population, rather than just women of childbearing age or the average number of children women have over their lifetimes, the crude birth rate captures a broader picture of fertility within a society.

Other options are focused on different aspects of population metrics. For instance, measuring the number of deaths per 1,000 individuals refers to the crude death rate, which is separate from birth rates. The average number of children per woman addresses fertility rates specifically, which is a different concept. Lastly, the number of births per 1,000 women aged 15-49 is known as the general fertility rate, again focusing on a subset of the population rather than the entire population, which is not the focus of the crude birth rate. Thus, the correct choice reflects the comprehensive nature of the crude birth rate as it relates to the entire population and births per annum.