For the following observations, find the regression co-efficients b_yx and b_xy and hence find the correlation co-efficient between x and y.(4,2) (2, 3)(3, 2)(4, 4)(2, 4)

Find the regression co-efficient of x on y from the following data. \(\sum\)X=20, \(\sum\)Y=40, \(\sum\)XY=300, \(\sum\)X²=150, \(\sum\)Y²=345, N=5. Find the value of x when y=5

Calculate Co-efficient of correlation for the following data:

X	-3	-2	-2	0	1	2	3
Y	9	4	1	0	1	4	9

Calculate the co-efficient of correlation between x and y on the basis of the following observations. \(\sum\)x=125, \(\sum\)x²=1650, \(\sum\)y=100, \(\sum\)y²=1460, \(\sum\)xy=50, n=25.

In a correlation study, the following values are obtained

	X	Y
Mean	50	50
S.D	3.5	4.5

The co-efficient of correlation is 0.5. Find the lines of regression.