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If the regression coefficient of x on y and y on x are - 1 2 and - 1 8 respectively, then what is the correlation coefficient between x and y ?

Options

  1. A- 1 4
  2. B- 1 16
  3. C1 16
  4. D1 4

Correct answer

A. - 1 4

Step-by-step solution

Correlation coefficient = -1 2 -1 8 = 1 16 =- 1 4 Since, both the regression coefficients are negative, correlation coefficient is negative.

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