Unit 5: Linear Regression

Correlation: R

The linear association between x-context and y-context is weak/moderate/strong (strength) and positive/negative (direction)

Residual

The actual y-context was residual above/below the predicted value when x-context = #

Y-intercept

The predicted y-context when x=0 context is y-intercept

Slope

The predicted y-context increases/decreases by slope for each additional x-context

Coefficient of determination (r²)

About r²% of the variation in y context can be explained by the linear relationship with x-context

Standard deviation of residuals (s)

The actual y-context is typically about s away from the value predicted by the LSRL with x=context

Describing the relationship

Direction

Unusual features

Form

Strength