Conducting a Regression Analysis Using Data (VCE SSCE General Mathematics): Flashcards

Variable used to make predictions, plotted on x-axis

Variable we are trying to predict, plotted on y-axis

Direction, Form, Strength, Outliers

$y = a + bx$ where $a$ = intercept, $b$ = slope

Average change in response per one-unit increase in explanatory

Predicted response value when explanatory variable equals zero

Strength and direction of linear relationship

Proportion of variation in response explained by explanatory

Check whether a linear model is appropriate for the data

Random scatter of points around zero with no clear pattern