DUE TUESDAY:

3.2 Residuals and the least-squares regression line
-Calculating the equation of the least-squares regression line
-Calculate and interpret residuals.
-Explain the concept of least squares.
-Use technology to find a least-squares regression line.
-Find the slope and intercept of the least-squares regression line from the means and standard deviations of x and y and their correlation.
Read/notes p. 168-171
p. 191; #43, 47,48,49

3.2 How well the line fits the data: residual plots
-How well the line fits the data: the role of r2 in regression
-Construct and interpret residual plots to assess if a linear model is appropriate.
-Use the standard deviation of the residuals to assess how well the line fits the data.
-Use r2 to assess how well the line fits the data.
Read/notes p. 172-179
p. 192; #53,55,57,61