Website Address: https://library.curriki.org/oer/8SP2-Investigate-patterns-of-association-in-bivariate-data-Straight-lines-as-models
Investigate patterns of association in bivariate data: Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.