Moality rates are taken into account while calculating: March 2011

Ans. B: NRR Net reproduction rate measures the number of daughters a woman would have in her lifetime if she experiences prevailing age-specific feility and moality rates Net reproduction rate/NRR It is the average number of daughters that would be born to a female (or a group of females) if she passed through her lifetime conforming to the age-specific feility and moality rates of a given year. This rate is similar to the gross reproduction rate but takes into account that some females will die before completing their childbearing years. An NRR of one means that each generation of mothers is having exactly enough daughters to replace themselves in the population. The NRR is paicularly relevant where sex ratios at bih are significantly affected by the use of reproductive technologies, or where life expectancy is low Total feility rate/ TFR/ Feility rate/ Period total feility rate (PTFR)/ Total period feility rate (TPFR) It is the average number of children that would be born to a woman over her lifetime if (1) she were to experience the exact current age-specific feility rates (ASFRs) through her lifetime, and (2) she were to survive from bih through the end of her reproductive life. It is obtained by summing the single-year age-specific rates at a given time.