AP Stats Unit 2 Scripts Memorization

FUDS

Direction: positive, negative, or no association

Form: linear or nonlinear

Strength: weak, moderate, or strong association

Unusual: outliers and distinct clusters of points

Correlation Script

r = ___, which means there is a (strength) (direction) linear association between (x) and (y).

Describing Scatterplot Script

There is a (strength), (direction), (form) association between (x variable) and (y variable). (mention unusual or lack thereof).

Residual Script

The actual (y variable) is (residual) (less or more) than the (y variable) predicted by the regression line with x = ___.

Slope Script

The predicted (y variable) (changes) by the (slope) for each (unit increase) of (x variable).

Y-Intercept Script

When (x=0), we expect (y variable) to equal (y intercept). 

Standard Deviation (s) Script

The actual (y variable) is typically about (s) away from the (y variable) predicted by the LSRL with x = (x variable).

r² Script

About (r²) of the variability in the (y variable) is accounted for by the LSRL with x = (x variable).