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Suppose you have a dataset containing two variables, X and Y. The sample covariance between X and Y is
calculated to be 50. Which of the following statements is true?
(Choose 1 answer)
☐ A
A. A positive covariance indicates that as X
increases. Y tends to decrease.
B. Covariance is always between -1 and 1.
C. A positive covariance indicates that X
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and Y tend to increase or decrease
together.
D. A covariance of 50 means that X and Y
are perfectly positively correlated.
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sh the exam.