Here's what's on tomorrow's test? quiz? quest?:
- 10 multiple choice questions
- 6 open ended (writing) questions (provided in bold)
- 3 short answer questions (identifying different points in a scatterplot)
Topics on the Quest:
- Know how correlation is affected by converting data to z scores (standardizing)
- Know how to find the correlation (r) from R^2: remember to check the slope to see if it's + or -
- Use a linear model to make predictions
- Calculate residuals: use a linear model to make a prediction, then find actual - predicted
- Interpret slope!
- Interpret y intercept!
- Interpret R^2!
- Know about correlation: you'll have to choose which (of 5) statement does not have an error (remember that "blunder" question?)
- Estimate correlation looking at a scatterplot (consider direction, then strength, to choose which correlation best matches the scatterplot given)
- Write the equation of the LSRL given a data set (Stat, Calc, LinReg)
- Write the equation of the LSRL given a computer output
- Is a linear model appropriate? Check a scatterplot to see if it's roughly linear and has no outliers, check that a residual plot has no pattern, and that the variables are quantitative
- Describe an association (shape, direction, strength, generally...)
- Interpret residuals
And lastly...Remember, stamps are due this week (by Friday)!
- Count up your stamps (double check!)
- Staple them together/put them in an envelope/bag, and write the total on the front!
- If the total on your paper does not match your actual total you'll get a 0! Double check!
- Stamps must be turned in by Friday!
- You're literally counting the number of blue ladybug stamps you have!
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