a partially destroyed laboratory data, only the equations giving the two lines of regression of x on y and y on x are available and are respectively, 7x-16y + 9 = 0, 5y - 4x-3 = 0. Calculate
the coefficient of correlation, x and y.
1
Expert's answer
2021-01-26T01:06:47-0500
The given two equation are 7x−16y+9=0 ......(1) and 5y−4x−3=0 ........(2)
Suppose 7x−16y+9=0 is regression equation of y on x
⟹7x−16y+9=0
⟹16y=7x+9
⟹y=167x+169
⟹y=0.4375x+0.5625
∴byx=0.4375
Again suppose 5y−4x−3=0 is regression equation of x on y
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