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if the relation between x and u is 3x + 4u + 7 = 0 and the correlation coefficient between x and y is -0.6, then what is correlation coefficient u and y


a)-0.6 b)0.8 c)0.6 d)-0.8

2 answers

U= (-3/4)x-7/3
Thus a perfect negative correlation between u and x
So correlation between u and y= (-0.6*(-3/4)/(-3/4)= 0.6
Kuch samaj nahi aata last step
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