Correlation and Regression

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Question : 44 of 156

Marks: +1, -0

If

cov(x, y)=15,

what restrictions should be put for the standard deviations of

x

and

y ?

No restriction.
The product of the standard deviations should be more than 15 .
The product of the standard deviations should be less than $15 .$
The sum of the standard deviations should be less than 15

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