A population can be classified according to its role in the economy:


[?] population: people that are old enough and physically able to work.
They can be [?] or unemployed.

[?] population: people who are unable to work.
[?] under the age of 16, [?] people over 67, [?] and people suffering from an [?].

Non-paid [?]: people who carry out activities for society or help in their free time ([?]) but don’t receive any money.
They do it for free. [?] that stay home and keep house or raise their children are also non-paid workers.