(b) The following table gives age-specific fertility rates for a certain region. 1965 - 69 1975 - 79 1980 - 84 1990 - 1994 age group 1960 - 64 1970 -74 1985 -89 15 - 19 0.040 0.049 0.045 0.030 0.030 0.031 0.033 20 - 24 0.175 0.165 0.130 0.108 0.095 0.094 0.088 25 - 29 0.183 0.164 0.135 0.125 0.127 0.125 0.120 30 - 34 0.105 0.090 0.067 0.065 0.075 0.084 0.087 35 - 39 0.049 0.040 0.025 0.020 0.024 0.030 0.033 40 - 44 0.015 0.010 0.007 0.005 0.005 0.005 0.006 45-49 0.000 0.000 0.000 0.000 0.000 0.000 0.000 . Calculate the cohort total fertility rate for the cohort 1950 - 54. ANSWER Calculate the period total fertility rate for the period 1980 -84. ANSWER

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