SOL Prep

Descriptive Statistics

Virginia SOL PS.DS.6

Create and interpret a linear model using the least squares regression method to assess relationships.

Study PS.DS.6 with SOL PrepBack to Probability and Statistics

What students need to be able to do

  • Create a least squares regression model using technology and interpret the contextual meaning of slope and y-intercept.
  • Calculate and interpret the correlation coefficient (r) using technology.
  • Calculate and interpret the coefficient of determination (r²) using technology.
  • Use regression lines to make predictions and identify limitations (e.g., extrapolation).
  • Calculate and interpret a residual to understand prediction error.
  • Calculate and interpret the standard deviation of the residuals (s) using technology.