Unit 0 - Regression

Unit Objectives
​Prior Knowledge/For Review – Students should be able to:
  • Plot Points
  • Interpreting scales on axes
  • Draw Scatter Diagrams
  • Describe correlation (positive, negative, zero) with reference to scatter diagram
  • Draw a straight line of best fit (by eye) through mean on a scatter diagram
IGCSE Core Learning Objectives – Students should be able to:
  • Understand the difference between the independent and dependent variables (Video 11.01)
  • Use the line of best fit to find values of the dependent and independent variables.
IGCSE Extended Learning Objectives – Students should be able to:
  • Use GDC to find equation of linear regression (Video 11.02)
  • Write the equation of linear regression using letters appropriate for the given variables
  • Use the equation of linear regression to calculate values of the dependent variable (Video 11.03)
  • Understand the difference between interpolation and extrapolation, and the reliability of results (Video 11.03)
  • Interpret the y-intercept and gradient of a line of best fit with relation to the variables represented (Video 11.04) (Video 11.05)
Lesson Resources​
0. Regression Work Booklet
5. Using Multipliers
6. ​Percentage Change
8. Reverse Percentages
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