MTH 233 Week 5 DQ 4

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MTH 233 Week 5 DQ 4

4.   If the scatterplot of two variables yields points that make a perfect straight line (either positive or negative), they are said to have “perfect linear correlation”- the correlation coefficient is either r = 1, or r = -1.  Can you think of two variables that have perfect linear correlation?  Can you think of two variables that have absolutely no linear correlation at all- a linear correlation r = 0?
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