calculate and interpret the correlation coefficient (𝑟) to quantify the strength of a linear association using Pearson’s correlation coefficient, where covariance and standard deviation are determined, using appropriate technology
3.1.3.3
model a linear relationship by fitting a least-squares line to the data
3.1.3.5
interpret the intercept and slope of the fitted line
3.1.3.6
use, not calculate, the coefficient of determination (R2) to assess the strength of a linear association in terms of the explained variation
3.1.4.3
solve practical problems by identifying, analysing and describing associations between two categorical variables or between two numerical variables.
