The correlation between X and Y
A) cannot be negative since variances are always positive.
B) is the covariance squared.
C) can be calculated by dividing the covariance between X and Y by the product of the two standard deviations.
D) is given by corr(X, Y) = .
Answer: C
Economics
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A) $29,899.74 B) $30,000 C) $3,563 D) $49,144.87
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In games with more than three players, the horizontal axis measures
A) the number of players. B) payoffs. C) time. D) all of the above
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