Correlation coefficient, coefficient of determination, testing of correlation, scatter plot or the effect of an outlier.
UNIT4
IOE Probability & Statistics Workbook
Correlation and Regression
Measure the strength of a linear relationship and build regression equations for prediction.
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Syllabus Coverage
- Simple linear correlation and testing of linear correlation
- Karl Pearson's correlation coefficient and its interpretation
- Coefficient of determination and scatter-diagram interpretation
- Simple regression analysis and prediction
- Explained, unexplained and total variation
- Multiple regression analysis, practice and short solutions
Likely Question Pattern
Simple regression equation, regression coefficient and prediction, possibly with a short theory part.
Confirmed : simple correlation is linear only. Theory and numerical work may be divided as 2+3 or 1+4 marks. Confidence interval for slope b is for tutorial work only. View the full exam pattern ›