Sidebar: Sex ratios around the world | Pew Research Center
The ratio of males to females in a village is 100: 97, There are 2,000 males in the village. Find the equivalent ratio that expresses the ratio of total males to total females
UN projects roughly equal number of males, females worldwide by 2050 | Pew Research Center
Gender Ratio - Our World in Data
Analysis Age and Sex Distribution Data - ppt video online download