The table below shows the percentage age distribution of population of country Y in 2010. The population was 200,000. Use the information in the table to an...
Question 1 Report
The table below shows the percentage age distribution of population of country Y in 2010. The population was 200,000. Use the information in the table to answer the questions that follow.
| Age group (year) | 0 - 18 | 19 - 40 | 41 - 60 | 60 and above |
| percentage distribution pf population | 30% | 35% | 25% | 10% |
(a) Calculate the size of the
i. working population
ii. dependent population
(b) If the population (0 -18) years is increased by 2% and 0.5% of the ages 61 years and above have died, what is the natural increase in the population.
(c) How will you describe the age distribution of the population? Give a reason for your answer..
Answer Details
The total population is 200,000, so each group size is its percentage of 200,000.
(a)(i) Working population is normally taken as ages 19 to 60, that is the 19-40 and 41-60 groups: \((35\%+25\%)\times200{,}000=60\%\times200{,}000=120{,}000\) people.
(a)(ii) Dependent population is ages 0-18 and 60 and above: \((30\%+10\%)\times200{,}000=40\%\times200{,}000=80{,}000\) people.
(b) The 0-18 group is \(30\%\times200{,}000=60{,}000\); a 2% rise adds births of \(0.02\times60{,}000=1{,}200\). The 60-and-above group is \(10\%\times200{,}000=20{,}000\); a 0.5% death rate gives deaths of \(0.005\times20{,}000=100\). Natural increase \(=\text{births}-\text{deaths}=1{,}200-100=1{,}100\) people.
(c) The population is a young (broad-based) population: a large share (40%) is dependent and a heavy proportion is in the younger age groups, giving a high dependency ratio of \(\dfrac{80{,}000}{120{,}000}=0.67\) (about 67%).
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