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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

1 of 1

Application +4 | -1

Lines of regression of

y

on

x

and

x

on

y

are respectively

y=a x+b

and

x=\alpha y+\beta

. If mean of

x

and

y

series is same, then its value is

View answer and explanation

Correct option: A

\frac{b}{1-a}

or

\frac{\beta}{1-\alpha}

Option A (-0.82) is correct because the correlation coefficient is calculated using the slopes of the two regression lines.

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