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Which of the following statements about covariance and correlation is correct? When two variables are perfectly correlated, the correlation will equal positive infinity. The covariance
Which of the following statements about covariance and correlation is correct? When two variables are perfectly correlated, the correlation will equal positive infinity. The covariance and correlation between X and Y carry the same sign. Both covariance and correlation are good measures of the strength of an association. If a researcher finds a strong correlation between X and Y, there must exists a causal relationship between
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