AP STATS- Inferential Unit 2

Question 1

Correlation (r)

Answer 1

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

Question 2

Residual

Answer 2

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

Question 3

Y-Intercept

Answer 3

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

Question 4

Slope

Answer 4

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

Question 5

Standard Deviation of Residuals

Answer 5

The actual [y-contetx] is typically about [s] away from the predicted value by the LSRL

Question 6

Coefficient of Determination (r^2)

Answer 6

About [r^2%] of the variation in [y-context] can be explained by the linear relationship with [x-context]

Question 7

Describe the Relationship

Answer 7

Be sure to address [strength] [direction] [form] and [unusual features] in context

EX. THE SCATTERPLOT REVEALS A MODERATELY STRONG POSITIVE LINEAR ASSOCIATION BETWEEN THE WEIGHT AND LENGHT OF RATTLESNAKES. THE POINT AT (24, 37) IS A POTENTIAL OUTLIER

DONT OVERTHINK THIS :)