Which of the following statements best explains why age-specific rates are used in demography?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. They reflect age-wise variation in fertility or mortality.
In demography, Age-Specific Rates (ASR) are essential because vital events like birth and death do not occur uniformly across all ages. For instance, mortality is typically higher among infants and the elderly, while fertility is concentrated within specific reproductive age groups. Crude rates can be misleading if a population has a disproportionate number of young or old people.
By calculating rates for specific age cohorts, demographers can accurately compare health outcomes, reproductive behavior, and life expectancy across different populations regardless of their overall age structure.