If cov(x,y) = 20, 
then the sample coefficient of correlation r is:
Definitions:
Analytical
Pertaining to the systematic examination or evaluation of details in order to understand or explain something.
Disposed
Having a particular inclination or tendency towards something, either naturally or through conditioning.
Positive Critical Thinking
The practice of engaging in reflective and independent thinking in a constructive manner.
Exact Result
The precise outcome of a calculation, measurement, or process.
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