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JEE MATHEMATICS MCQ: STATISTICS

1 Medium

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Analyzing +4 | -1

Correlation coefficient

r

of two variables

x

and

y

is positive, when

View answer and explanation

Correct option: A

\sigma_{x+y} > \sigma_{x-y}

Option A (

\sigma_{x+y} > \sigma_{x-y}

) is correct because a positive correlation coefficient implies that the variance of the sum is greater than the variance of the difference.

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