APSTATS Interpreting Review.
Interpret the Slope
For every one hour increase, our model predicts a 6 increase in the score on the test.
Interpret the Y Intercept
If a student studies for 0 hours, they will receive a score of 45.
Interpret R²
78% of the score can be attributed to the linear relationship with the hours studies.
Interpret R
.882, the strength of the plots to the line is strong, positive, and a linear relationship between study hours and the score.
Interpret the Residual Plot
A linear graph is appropriate because the plots are random and there are no distinct curves.
Interpolate
Inside Min and Max value (from graph/table)
Extrapolate
Outside Min and Max value