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12.1 Correlation Find the correlation ofx and y, given the following quantities: 2 (x 7c)(y ?)= 142.6, 2 (x X): 25.9, and z (y 7):

12.1 Correlation Find the correlation ofx and y, given the following quantities: 2 (x 7c)(y ?)= 142.6, 2 (x X): 25.9, and z (y 7): 19.7. a 0.63 7' 0.08 ii 0.28 a 0.53

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