Which of the following phrases makes this a correct statement: “If the covarianc

Question

Which of the following phrases makes this a correct statement: “If the covariance between two variables is negative, then …

… the correlation coefficient will be greater than 1.”

… we know for sure that the correlation coefficient between those two variables is also negative.”

… the variance of at least one of the variables must be negative.”

None of the above.

… the correlation coefficient will be greater than 1.”

… we know for sure that the correlation coefficient between those two variables is also negative.”

… the variance of at least one of the variables must be negative.”

None of the above.

Explanation / Answer

(a) is wrong because correlation coefficient only varies between -1 and 1, (b) is correct as the sign of corerlation and covariance is same, (c) is wrong because variance is never negative.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.