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
To find the correlation coefficient between variables u and y, we need to determine the covariance and standard deviations of u and y. However, we don't have any information about the relationship between u and y.
The provided equation, 3x + 4u + 7 = 0, only relates x and u. It does not mention y, so we cannot directly determine the correlation coefficient between u and y from this equation alone.
To find the correlation coefficient between u and y, we would ideally need another equation, given as a relation between u and y. Without additional information, it is not possible to determine the correlation coefficient between u and y.