If you mean there will be 4 billion winners from a population of 64 billion people - the odds are 16:1
There's about 2 billion Christians out of the 6 billion people on earth
about 55% which is about 3.7 billion :)
1.3 Billion Black people in the WORLD. 6.7 billion is the total Human population as of January 2009, so about 20%
300 people/7,000,000,000 people= 4.28571429 × 10-8 or .0000000428571429%
There are about 6 billion people on the Earth with a population of about 1.2 billion catholics. The percentage is about 20%
As of 2012, there are 2.4 billion Christians in the world. This is 34 percent of the world's total population of 6.8 billion people.
Your question is actually meaningless without context. But allow me to propose one. Let us say that the question is, 3.5 billion is what percentage of the current total human population of nearly 7 billion people. The answer then is nearly 50%.
1 billion people worldwide are illiterate.
Some 1.1 billion people in developing countries have inadequate access to water, and 2.6 billion lack basic sanitation.
About a sixth of the population of the world (1.1 billion people) is Catholic.
In 1990 there were 1.3 billion women of childbearing age out of 7 billion people in the world. That's a little over 18%.
There are more than 1 billion people who reside in India. In 2013, the percentage of people employed in India was 40 percent. About 51 percent of Indian workers are self-employed.
More than 7 billion people live on the Earth. China accounts for 19.1% of those people with 1,338,300 citizens.
Approximately 1/3 of the population, which would be 2.3 billion smokers.
Probabilty(in finance), powers, and much more
In 2007 it was estimated 6.7 billion users used the internet to search.
Justin Bieber has roughly 6 million fans out of 7 billion people
with 6.7 billion people and 570 million cars the answer must be 8.5%
There is over 6 billion people that play soccer so I think that it is 91% of the 6,588,348,576 people play soccer.
Hindus make some 80% of people in India and Nepal and 10% in Bangladesh totalling to about a billion.
It is estimated that 250 million to 310 million people speak Arabic in the world. Out of approximately 7 billion + people that is roughly 3.5%, +/- a little.
There are approximately seven billion people that live on planet Earth. Males out number females by a slight percentage with 50.24% of the world's population being male.
About 13.8 to 14% of the world population. About 1 billion people. The largest proportion lives in India, around 957 million. By comparision there are 2.1 billion Christians,1.6 billion Muslims, 376 million Buddhists, 23 million Shikhs, 14 million Jews.