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LINEAR CORRELATION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsLINEAR CORRELATION3 Marks
Question
From the following data find the correlation coefficient between $X$ and $Y$ and interprete it: $ \begin{aligned} &n=7, \sum x=54, \sum y=538, \sum u=5, \sum v= \\ &13, \sum u^{2}=53, \sum v^{2}=469, \sum u v=-139 \end{aligned} $
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Answer

$r = -1,$ perfect negative linear correlation

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