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General Maths Units 1 and 2

Fitting a linear model to the data

Investigating relationships between two numerical variables

28:13 Lesson length
16 Chapters
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About this lesson
This video, forming part of the Year 11 General Mathematics course, looks at how we can fit a model to some data. Using the CAS we can find the least squares regression line and pearsons correlation coefficient to help us predict values we might have. I look at how to use the CAS effectively to find the equation of the least squares regression line. I look at best practice and fully explain both the how and the why. The explanation is easy to understand.
Lesson chapters
  1. Welcome
  2. Learning Objectives
  3. Recap of past learning
  4. What is a least squares regression line?
  5. Finding the equations of a least squares line
  6. Moving the letters around
  7. Each value is a coordinate
  8. Using the graph drawing capabilities of the CAS
  9. Finding the 'r' value
  10. Residual values
  11. Making the values of the residual as small as possible
  12. You mentioned an equation?
  13. Example 1
  14. Beware Will Robinson!
  15. Finding the equation of the least squares line from a graph
  16. Learning Objectives: Revisited
Legal (VCAA)

VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title Fitting a linear model to the data
  • Section Investigating relationships between two numerical variables
  • Course General Maths Units 1 and 2

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