9-16. Given that the regression equations of Y on X and of X on Y are respectively Y = X and 4X - Y = 3, and that the second moment of X about the origin is 2, find (a) the correlation coefficient between X and Y and (b) the standard deviation of Y.

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9:16. Given that the regression equations of Y on X and of X on Y are respectively Y = X and
A - Y = 3, and that the second moment of X about the origin is 2, find
(a) the correlation coefficient between X and Y and
(b) the standard deviation of Y.
Transcribed Image Text:9:16. Given that the regression equations of Y on X and of X on Y are respectively Y = X and A - Y = 3, and that the second moment of X about the origin is 2, find (a) the correlation coefficient between X and Y and (b) the standard deviation of Y.
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