JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Analyzing +4 | -1

If both the regression coefficients

b_{y x}

and

b_{x y}

are positive, then

View answer and explanation

Correct option: A

\frac{1}{b_{y x}}+\frac{1}{b_{x y}} > \frac{2}{r}

Option A (

\frac{1}{b_{y x}}+\frac{1}{b_{x y}} > \frac{2}{r}

) is correct because the geometric mean of regression coefficients is greater than or equal to the harmonic mean.

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