He found no statistical correlation between expenditures and the winning candidate.
And that will require "disease association studies" - surveying many people to find statistical correlations.
Each study found only a statistical correlation, which is not necessarily an indication that one thing causes another.
Moreover, there is a statistical correlation between brain mass or size and intelligence in human beings.
Some studies, however, have found statistical correlations between various diseases and living or working near power lines.
The study found no statistical correlation between a major star's participation in a film and either revenues or return on investment.
These statistical correlations can't be reliably applied to the individual.
There is also a positive statistical correlation between self-harm and emotional abuse.
There is, however, a high degree of statistical correlation between scores on the two measures.
In such a situation, there may be a statistical correlation even if there is no real effect.