Question: For a sample data set, the slope b of the regression line has a negative value. Which of the following is true about the linear

For a sample data set, the slope b of the regression line has a negative value. Which of the following is true about the linear correlation coefficient r calculated for the same sample data?
a. The value of r will be positive.
b. The value of r will be negative.
c. The value of r can be positive or negative.

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