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MTH 233 Week 5 DQ 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?