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Covariance Matrix (X,Y) COVARIANCE MATRIX X Y X 625 140 Y 140 64 15. What is the standard deviation of X? Group of answer choices

Covariance Matrix (X,Y)

COVARIANCE MATRIX
	X	Y
X	625	140
Y	140	64

15. What is the standard deviation of X?

Group of answer choices

140

none of these choices

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