10.2 Scatterplots

On each scatterplot in Fig. 10.1 for which a linear relationship is appropriate:

  1. Draw the ‘best’ straight regression line (where appropriate).
  2. From the line you drew in 1. above, estimate the slope for each line.
  3. From the line you drew in 1. above, estimate the intercept for each line.
  4. Then write down an estimate of the regression line equation.