Engineering Mathematics Probability and Statistics Correlation Analysis

In a partially destroyed lab record only the lines of regression of y on x and x on y and y on x are available as 4x - 5y + 33 = 0 and 20x - 9y = 107 respectively. What is  the co-efficient  correlation between x and y?

1
-0.6
2
+0.6
3
-0.3
4
+0.3

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