For example:
The graph below shows the relationship between poverty and the number of deaths from Malaria in 2010.
What relationship does the graph suggest about malaria and poverty?
A: There is no relationship between malaria and the proportion of the population living on less than US$1.25 per day.
B: There is positive correlation between malaria and the proportion of the population living on less than US$1.25 per day.
C: Malaria causes poverty
D: Poverty causes malaria
