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Question
For a bivariate data,
`bar x = 53 , bar y = 28 , "b"_"xy" = -1.5 and "b"_"xy"=- 0.2` Find
Correlation coefficient between X and Y
Sum
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Solution
r = `sqrt (+- "b"_"xy" xx "b"_"xy")`
`= sqrt (- 1.5 xx -0.2)`
`= - sqrt 0.3`
r = - 0.5477
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Regression Coefficient of X on Y and Y on X
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