There are about 1600 million (1.6 billion) Muslims, per Pew Forum study of October 2009.The current world population is about 7 billion, which means that roughly 23% of the world's population is Muslim.Islam is the second-largest religion after Christianity, and it is estimated that Islam will be the largest religion by 2025. This is according to the current ratio which is increasing rapidly.
Puerto Rico is the Caribbean island with the most white population with over a 76.2% of the population being white mostly Spanish descendence.
The ratio of non-working population to working age population is called the dependency ratio. It is used to assess the pressure placed on the working population to support the dependent population.
As the areas and populations of countries are not in correlation, I can only bring out those countries that have the best population and area ratio. Those would probably be: USA (North-America) and China (Asia)
The largest angle is
The age group that experienced the largest increase in the male-female ratio from 1990 to 2000 was likely the senior population, typically age 65 and over. This age group tends to have a higher proportion of females due to longer life expectancy, leading to a larger increase in the male-female ratio as the population ages over the decade.
Sex ratio is ratio of males to females in a population.
Maxico
California has the most women as well as the most people.
It is the ratio between the size of the sample and the size of the population.
In the United States, the ratio of firemen to population is: 2.5 firefighters per 1000 of population. This has been a constant ratio for the last couple of years.
1:50