The phrase "a weaker correlation" is correct and usable in written English.
It can be used when discussing the strength of a relationship between two variables in statistical or analytical contexts.
Example: "The study revealed a weaker correlation between exercise frequency and weight loss than previously anticipated."
Alternatives: "a less strong correlation" or "a diminished correlation."
However, they also found that the values on the southern segment (Landers/Johnson Valley faults) showed a weaker correlation and were anti-correlated on the central segment (Homestead Valley fault).
However, muscle transcripts 1A and 1B and total CD36 mRNA correlated with FFA Rd, and a weaker correlation was observed with VLDL-TG clearance (Table 2).
We found that both NDVI and NDBI are strongly correlated with the variations of LST whereas NDBaI has a weaker correlation with LST.
However, we found a weaker correlation when testing the correlation between our soiling rate measurements and AOD retrievals from different satellite instruments (such as the MODIS instrument; we used the Level-3 MODIS products48).
PPD has a weaker correlation of 0.64 for males and 0.61 for females (R2 = 0.38 overall).
Temperature showed a weaker correlation with grain shape traits than did light and humidity.
A weaker correlation is observed for the rest of the latitudes.
There is a weaker correlation between answering tier-1 questions on light propagation and answering tier-1 questions on visibility.
A weaker correlation existed between the time constant of LV relaxation and the peak filling rate (r = -0.49) and between the LV end-diastolic pressure and the peak filling rate (r = -0.62).
Motivational processes in the garden in spring of sixth grade showed moderate concurrent correlations with student-report outcomes and a weaker correlation with science grades.
Within each area, these 10 parameters exhibited a weaker correlation with brown rice ratio, milled rice ratio, and gel consistency than over all four areas together.
