Q77 · CSIR-NET Chemistry, June 2013
Paper: CSIR-NET June 2013 · Subject: Physical Chemistry · Chapter: Data Analysis · Topic: Regression Fitting · Marks: 2 · Difficulty: Medium
The correlation coefficient of two parameters is found to be -0.99 . It may be concluded that the two parameters are
(a)strongly correlated
(b)almost uncorrelated
(c)connected by a cause-effect relationship
(d)not connected by a cause-effect relationship
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
r = −0.99 is a very strong (negative) linear correlation; correlation says nothing about cause and effect.
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