Check list:

  1. Revise symmetric and skewed data.
  2. Use statistical summaries, scatterplots, regression (in particular the least squares regression line) and correlation to analyse and make meaningful comments on the context associated with given bivariate data, including interpolation, extrapolation and discussions on skewness.

Learn the concepts:
Videos from learn.mindset.co.za
Mind Action Series: Mathematics 12 Textbook & Workbook (2013):
Revision Exercise Page 317
Exercise 1 Page 324
Exercise 2 Page 331
Revision Exercise Page 333
Relevant sections in Everything Maths:

Practice the concepts: