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If the regression coeffcients for the va...

If the regression coeffcients for the variable x and y are `b _(xy) =1 and b _(yx) = 1/2` then find the angle between the regression lines.

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If the regression coefficients be given by b_(yx)=(2)/(9) and b_(xy)=2 and theta be angle between the regression lines find the value of theta.

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Knowledge Check

  • If the regression coefficients b_(xy)=1.6 and b_(yx)=0.4 , and theta is the angle between the two lines of regression, then the value of tantheta is

    A
    A) -0.36
    B
    B) 0.72
    C
    C) -0.18
    D
    D) 0.64

  • The angle between the regression lines: x-2y+3=0, 4x-5y+1=0 is

    A
    `tan^(-1)(pm3/14)`
    B
    `pi/2`
    C
    `tan^(-1)(pm14/3)`
    D
    None of these

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    The correlation coefficient between x and y is 0.6. If the variance of x is 225, th variance of y is 400, mean of x is 10 and mean of y is 20, find the equation of two regression lines.

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    Find the angle between the lines x-2y+3=0 and 3x+y-1=0 .

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