Plz answer me

Dear Student
Marks in Maths (X) Marks in Economics (Y) X^2 Y^2 XY
4 6 16 36 24
6 8 36 64 48
8 10 64 100 80
10 12 100 144 120
12 14 144 196 168
40 50 360 540 440


r(x,y) = (xy) - 1n(x.y)x2-1n(x)2 y2-1n(y)2r(x,y) = 440 - 15(40.50)360-15(40)2 540-15(50)2r(x,y) = 4040 40r(x,y) = 4040 40r(x,y) = 4040r(x,y) = 1


Regards

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