tutorial questions

Table 1: Births and Number of Infant deaths 1971-1995 Number of Births Number of deaths of infants aged under 1 year Males Females Males Females 1971 402 500 380 800 7970 5750 1976 301 200 283 600 4880 3460 1981 327 000 308 500 4120 2900 1986 338 200 323 800 3720 2590 1991 357 830 342 200 2970 2190 1993 344 300 328 600 2410 1840 1994 343 500 324 100 2370 1750 1995 331 900 317 000 2290 1680 a. Calculate the sex specic infant mortality rates for the years 1971 1995 b. Calculate the infant mortality rates for both sexes for 1971-1995. 0. Comment on your results. (:1. Why is IMR not a true rate