While this support activity is designed for a face-to-face, synchronous delivery, it should be noted that supporting text and interactive examples have been embedded in the digital assignment page to assist asynchronous or hybrid course delivery and to be made more accessible to students performing make-up work.

Notes for synchronous active-learning delivery

The purpose of this corequisite support activity is to provide additional practice and assess students’ abilities to:

• Use technology to make a scatterplot.
• Use technology to calculate a line of best fit.
• Interpret the slope and intercept of the line of best fit.

Students will need these skills in order to complete Preview Assignment and In-Class Activity 6.E.

The suggested technology for this support activity is the DCMP Linear Regression tool at https://dcmathpathways.shinyapps.io/LinearRegression/.

Students can complete all of the questions in this support activity using the Fit Linear Regression Model tab. Students may calculate predicted values directly from the equation of the line or using the “Find Predicted Value” functionality in the sidebar of the tool.

Students may obtain the scatterplot of residuals versus predicted values for Question 3 from the Fitted Values & Residual Analysis tab.