AP Statistics Scripts
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Last updated 7:01 AM on 2/18/25
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7 Terms
1
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Interpret r²
(r²) percent of the variation in (y) is explained by the linear relationship with (x).
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Interpret residual
The actual (context) was (residual) above or below the predicted value for x=#.
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Interpret y-intercept
When x=0 (context), the predicted y context is y-int.
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Interpret slope
For each additional x context, the predicted y context increases/decreases by (slope).
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slope formula
b(slope)= r x s y/s x
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y hat= a + bx
a= y mean - b mean x
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What kind of residual plot would indicate that the linear model is GOOD?
A residual plot with no pattern between the residuals is a good linear model.
Note 
Flashcards (125)