Ch. 8 Vocab Quiz Tomorrow!

You have 2 homework responsibilities tonight:

1.) Please complete questions 3, 4, 5, and 6 on the worksheet provided in class (or below). For question 4, you just have to comment on the residual plot to decide if a linear model is appropriate, as no other information is given.

2.) STUDY YOUR VOCAB! Here's the list:

• Residual
• three definitions: actual - predicted, measures how far off a prediction is from our actual value (error), or the vertical distance between a point and the LSRL
• Slope
• Y-Intercept
• R^2 (Coefficient of Determination)
• r (Correlation) 
• This is from our chapter 7 vocab quiz--use it to study!
• Predicted Value
• A value that comes from the LSRL, either looking at a graph or substituting into the LSRL equation!
• Overestimate
• Underestimate
• Linear Model
• An equation used to make predictions for a response (y) variable based on values of the explanatory (x) variable
• Response Variable
• Explanatory Variable
• Conditions: is a linear model appropriate?
• Check a scatterplot is roughly linear with no outliers, residual plot has no pattern, and two quantitative varibles

Tomorrow we'll start class with our chapter 8 vocab quiz, and then we'll do some classwork AP free response and multiple choice! See you there!