The completed family size may be estimated by:: (A) Bih rate, (B) Death rate, (C) Total feility rate, (D) Age specific feility rate
Answer is C. The total feility rate gives the approximate estimation of completed family size. It represents the average number of children a woman would have if she were to pass through her reproductive years bearing children at the same rates as the women now in each age group. TOTAL FEILITY RATE = (SUM OF THE AGE SPECIFIC FEILITY RATES)*(AGE INTERVAL OF THE WOMEN) 1000 or TOTAL FEILITY RATE =*(AGE INTERVAL) 1000 Where For example: TOTAL FEILITY RATE IN 5 YEAR AGE GROUPS = 5 [?](AGE SPECIFIC FEILITY RATE) 1000 Ref: Park Textbook of Preventive and Social Medicine, 19th Edition, Pages 52, 53, 386, 387