Test Tomorrow! Study!

Big test tomorrow (chapters 7-9)....study!

Homework:

Period B: Please complete the two AP problems provided in class (regarding scatterplots).

Periods E,F: Please complete the 3 multiple choice questions provided in class.

Test Topics (by question!)

**There is no re-expression (chapter 10) on tomorrow's test**

• How does correlation change if we...
• switch axes, change units, or convert data to z-scores...
• Interpret r and R^2
• "Which statement about the correlation does not contain an error?"
• Calculate residual 
• Interpret slope!
• Interpret y-intercept
• Interpret R^2
• More about slope....
• Match correlation to a scatterplot
• Residual and Leverage (given a graph)...
• Finding equation of a line algebraically
• Describe an association/correlation
• Is a linear model appropriate? (given residual plot...)
• Find predicted value...
• Find LSRL given a data set
• Interpret correlation (r)...
• Over/underestimates (and residuals)
• Carefully read/examine a scatterplot