9. If the coefficient of correlation between two variables x and y is 0.5 and the acute angle between their lines of regression is tan-1, show that ox Oy 2+V3

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Please answer number 9 with complete solution
8. The regression equations of two variables x and y are x =
y = 0.3x +2.8. Find the means of the two variables and the coefficient of
0.7y + 5.2,
correlation between them.
9. If the coefficient of correlation between two variables x and y is 0.5 and the acute
angle between their lines of regression is tan-1
3
2, show that ox =
8
dy
2+v3
lab data, following results
retrieved:
were
10. From
a partially destroyed
Lines of regression are:
8x =
10y - 66 and 18y = 40x-214, ox = 3
%3D
Find x,y, o, and r for the existing data.
Transcribed Image Text:8. The regression equations of two variables x and y are x = y = 0.3x +2.8. Find the means of the two variables and the coefficient of 0.7y + 5.2, correlation between them. 9. If the coefficient of correlation between two variables x and y is 0.5 and the acute angle between their lines of regression is tan-1 3 2, show that ox = 8 dy 2+v3 lab data, following results retrieved: were 10. From a partially destroyed Lines of regression are: 8x = 10y - 66 and 18y = 40x-214, ox = 3 %3D Find x,y, o, and r for the existing data.
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