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LINEAR CORRELATION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsLINEAR CORRELATION1 Mark
Question
Define : Perfect negative linear correlation
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Answer

When all the points on a scatter diagram are on a straight line going downwards from upper left-hand corner to lower right-hand corner of the graph paper, then the variables $X$ and $Y$ are said to have perfect negative linear correlation between them.

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