New Jersey Student Learning Standards
NJ.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, and informally assess the model fit (e.g. line of best fit) by judging the closeness of the data points to the line.