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Algebra
Pregunta

A perfect straight line sloping downward would pro...

A perfect straight line sloping downward would produce a correlation coefficient equal to:

A. \(- 1\) 

B. \( - 2 \) 

C. \( + 2 \) 

D. \( + 1 \) 

Generally speaking, if two variables are unrelated (as one increases, the other shows no pattern), the covariance will be: 

A. a positive or negative number close to.zero 

B. a large positive number 

C. a large negative number 

D. none of the above   

Answer

Solución
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