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Closing prices of two stocks are recorded for 50 trading days. The sample standard deviation of stock X is 4.020 and the sample standard deviation

Closing prices of two stocks are recorded for 50 trading days. The sample standard deviation of stock X is 4.020 and the sample standard deviation of stock Y is 8.294. The sample covariance is -36.001

Correlation Coefficient:

(b) There is a:

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