South Dakota Content Standards
8.SP. Statistics and Probability
8.SP.A. Investigate patterns of association in bivariate data.
8.SP.A.2. 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 (i.e. line of fit), and informally assess the model fit by judging the closeness of the data points to the line.