Difference between revisions of "S1 Correlation and Regression"
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*Scatter diagrams | *Scatter diagrams | ||
*Linear regression | *Linear regression | ||
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*Drawing regression line on a scatter diagram | *Drawing regression line on a scatter diagram | ||
*Explanatory (independent) and response (dependent) variables | *Explanatory (independent) and response (dependent) variables | ||
Revision as of 08:00, 8 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
