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LINEAR CORRELATION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsLINEAR CORRELATION1 Mark
Question
Define perfect positive linear correlation.
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Answer

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

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