The phrase "a definite correlation" is correct and usable in written English.
It can be used when discussing a clear and established relationship between two variables or phenomena.
Example: "The study found a definite correlation between exercise frequency and overall health outcomes."
Alternatives: "a clear relationship" or "a strong link".
National studies have shown a definite correlation between enjoyable as well as nutritious meals and school performance and attendance.
And in a piece for Aero magazine in March 2000, Boeing admitted it could not find "a definite correlation" between PEDs and aircraft systems malfunctions.
At the time, the Science Museum's director was quoted as saying that there was "a definite correlation between art and science", but the planned closure of Media Space later this year suggests he has changed his mind.
Ryan Jenkyns, a comic book artist who works at London's Orbital Comics, said: "There's a definite correlation in terms of what comics in terms of what selling out of when a film terms out.
Further, the electrochemical properties of the representative compounds (7e, 8e and 9e) were evaluated and a definite correlation between the redox potential and the antiproliferative activity.
Implementation of this strategy will have positive technological effects since, besides the improvement in strength, a definite correlation between uniform elongation and work-hardening capacity was clearly demonstrated.
Here we have suggested a simple heuristic algorithm that, starting from a (positive definite) correlation matrix, infers a partially directed network that in turn allows generating causal hypotheses of how the data were generated.
Because it proved impossible to estimate a measurement model for the latent variable Knowledge alone (i.e. a not positive definite correlation matrix of measurement errors), we estimated the latent variable Knowledge and the latent variable Barriers in the same measurement model, because theoretically both play a role in the relationship between Intention and Behaviour in the ASE model.
Chronic otitis media has been implicated for a long time as an aetiological factor but no definite correlation has been proven.
The correlation coefficient of gene expression between PLD3 and PGRN exceeds 0.4, suggesting a definite positive correlation between both.
In addition, even amongst those proteins identified, there is a definite positive correlation between CAI and exponentially modified protein abundance index (emPAI), a measure of protein abundance derived from the total number of spectral evidences contributing to a given protein identification [18] (Figure 2B).
