It is possible to interpret a pie chart by looking at the proportions of the sectors. The angles can be used to work out what proportion of the whole population a pie chart sector represents.

The estimates are based on 1,059 unique data sources from 196 countries or areas, representing approximately 98 per cent of the world’s population in 2022, with reference dates ranging from 1960 ...

Because of their closed population stemming from a small number of German immigrants -- about 200 individuals -- the Amish carry unusual concentrations of gene mutations that cause a number of ...