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

For a sample data set, the slope b of the regression line has a positive value.

Which of the following is true about the linear correlation coefficient r calculates for the same sample data?

  1. The value of r will be positive.
  2. The value of r will be negative
  3. the value of r can be positive or negative
  4. one must see the data

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