Question 15.4

15.4 Least-squares. The least-squares regression line

  1. (a) is the line that makes the sum of the vertical distances of the data points from the line as small as possible.

  2. (b) is the line that makes the sum of the vertical distances of the data points from the line as large as possible.

  3. (c) is the line that makes the sum of the squared vertical distances of the data points from the line as small as possible.

  4. (d) is the line that makes the sum of the squared vertical distances of the data points from the line as large as possible.