Practice question · Estimate
In a pre-transition society with high child mortality, roughly how many births were needed for three children to reach adulthood?
Estimate on a scale from 3 to 9.
Hints
- Work backwards from the number of survivors wanted.
- With roughly half dying young, the births must be doubled.
Show the answer
6 births (answers within ±1 count)
Why
About six. Which is exactly why the number falls when child mortality does: the target was never six children, it was three survivors, and the fertility was the price of the mortality.
Practise Demography and Migration
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