NDA2020MathematicsStatisticsActual
Let X and Y represent prices (in ₹) of a commodity in Kolkata and Mumbai respectively. It is given that X=65, Y=67 , _X=2.5, _Y=3.5 and r(X, Y)=0.8 . What is the equation of regression of Y on X ?
Options
- AY=0.175 X-5
- BY=1.12 X-5.8
- CY=1.12 X-5
- DY=0.17 X+5.8
Correct answer
B. Y=1.12 X-5.8
Step-by-step solution
Regression of Y on X : aligned & Y= _y _x r(x, y) X-a( where a= constant term ) & Y= ( 3.5 2.5 0.8 ) X-5.8 & Y=1.12 X-5.8 aligned