AP Stats interpretation sentences

chapter 1-3 currently

standard deviation

the (variable in context) typically varies by about (standard deviation value) from the mean of (mean)

describing a scatterplot

there is a (strength), (direction), (form), relationship between (x variable in context) and (y variable in context). There are (unusual features)

slope for LSRL

the predicted (y variable in context) (increases/decreases) by (slope with units) for each additional (x variable in context)

y intercept for LSRL

the predicted (y variable in context) is (y intercept with units) when the (x variable in context) is 0 (explain if this value has any practical meaning)

standard deviation of residuals (S)

the actual (y variable in context) is typically (S with units) away from the (y variable in context) predicted by the LSRL with x=(x variable in context)

coefficient of determination (r²)

about r²% of the variability in (y variable in context) is accounted for by the LSRL with x=( x variable in context)