I would need to derive the total (aggregate) Income of a certain region (to then compute the average). I have data on:
disposable income for each individual of the region, but in deciles:
1st decile: \$ 18.000
2nd decile: \$ 21.000
9th decile: \$ 54.000
total population of the region: 119.312 individuals
From these pieces of information, is it possible to compute the total (aggregate) income of the region?