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If the correlation coefficient between two variables is 0.5 andthe standard deviation of the variables is 5 and 10, respectively,then the sample covariance is approximately

If the correlation coefficient between two variables is 0.5 andthe standard deviation of the variables is 5 and 10, respectively,then the sample covariance is approximately ...

	a.	25
	b.	50
	c.	250
	d.	Impossible to determine with any level of accuracy.

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