Difference between revisions of "S1 Correlation and Regression"
(→Supporting activities) |
(→Supporting activities) |
||
| Line 14: | Line 14: | ||
== Preparation == | == Preparation == | ||
== Supporting activities == | == Supporting activities == | ||
| − | Product Moment Correlation Coefficient | + | === Product Moment Correlation Coefficient === |
[[Media:Correlation_and_pmcc.ppt|Powerpoint PMCC]] | [[Media:Correlation_and_pmcc.ppt|Powerpoint PMCC]] | ||
Revision as of 10:57, 11 July 2014
Part of S1
Contents
Objectives
- Scatter diagrams
- Linear regression
- Drawing regression line on a scatter diagram
- Explanatory (independent) and response (dependent) variables
- Applications and interpretations
- Make predictions within the range of values of the explanatory variable and recognise the dangers of extrapolation
- Variables other than x and y may be used
- Linear change of variable may be required
- The product moment correlation coefficient, its use, interpretation and limitations
Preparation
Supporting activities
Product Moment Correlation Coefficient
Worksheet PMCC (to use with the above Powerpoint)
Consolidation
Homework
Key questions
Assessment
Notes
Spec says "Calculation of the equation of a linear regression line using least squares" which we assume is a reference to understanding the component parts of the PMCC formula and being able to find them for small sets of data
