Assertion (A): For two attributes A and B, if (AB) > (A)(B)/N, they are positively associated. Reason (R): Positive association means they occur together more often than expected under independence. Choose the correct option:
A.Both A and R are true, but R is not the correct explanation of A
B.A is true, R is false
C.Both A and R are true, and R is the correct explanation of A
The total fertility rate (TFR) is the sum of age-specific fertility rates multiplied by the width of age interval. If 5-year groups, it is multiplied by:
Explanation:
TFR = 5 × Σ ASFR (per woman) if ASFR are computed per 1000 women per 5-year interval and divided by 1000 appropriately. Actually, if ASFRs are in per 1000, TFR = 5 × Σ ASFR_i / 1000.
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