engineering recuitment GATE CE 2023-24 Test Series Engineering Mathematics Probability and Statistics Regression Analysis
The equations of the two lines of regression are: 4x + 3y + 7 = 0 and 3x + 4y + 8 = 0. The correlation coefficient between x and y is
1
1.25
2
0.25
3
-0.75
4
0.92