Question

Age (years) Population Under 15 2600 15 - 64 16000 Over 64 4000 Calculate the child dependency ratio from the chart above. Round to 3 decimals places.

Answer 1

16.25%

=0.163 (correct to 3 decimal places)

Explanation:

The child dependency ratio of a population is defined as the number of children (Under 15 years) divided by the working-age population (15–64 years old).

`\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\frac{{\mathrm{ Population}\,\left( \text{Under 15} \right)}}{{\mathrm{ Population}\,\left( {15-64} \right)}}* 100`

From the given table:

Population Under 15 years = 2600

Population of the working class (between 15-64) = 16000

Therefore:

`\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=(2600)/(16000)* 100\\\\=16.25\%`

=0.163 (correct to 3 decimal places)