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QLDGeneral MathematicsQuick questions
Unit 3: Bivariate data, sequences and change, and Earth geometry
Quick questions on Bivariate data analysis and correlation (QCE General Mathematics Unit 3)
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is pearson's correlation coefficient?Show answer
For linear associations, Pearson's correlation coefficient measures the direction and strength of the linear relationship on a scale from to :
What is the coefficient of determination?Show answer
The coefficient of determination is simply , the square of the correlation coefficient. It is usually quoted as a percentage and interpreted as the proportion of the variation in the response variable that is explained by the linear relationship with the explanatory variable.
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