Let X be the event that a person chosen at random from anywhere on earth will live in Africa.
What is P(X)?
Continent
Africa
North
America
South
America
Asia
Europe
Oceania
Population
distribution
0.23
0.08
0.06
0.55
0.07
0.01
Data from US Census Bureau 2011
0.77
23
O
o 77
0.23