Tonight, please complete the following in your textbook:
Page 160: 13, 19, 21, 23, 25
- For 13a and 21a, remember there are three things to consider to decide if it's appropriate to use correlation: we need 2 quantitative variables, our scatterplot should be roughly linear, and there shouldn't be any outliers
- For any questions that ask you to describe the correlation/association of a scatterplot (13b, 19, 21b), remember you should talk about the shape, direction, and strength. Then, add some context ("Generally, as _____ increases, _________ increases/decreases.")
- Vocab Quiz (all multiple choice):
- Explanatory/Predictor Variable
- Response Variable
- Scatterplot
- Correlation
- Outlier
- Lurking Variable
- What 3 conditions do we check to determine if a linear model is appropriate?
- What 3 aspects do we discuss when we "describe an association?"
- "Math" Quiz (open-ended)
- Sketch a scatterplot (using your calculator)
- Calculate r (using your calculator)
- Describe the association
- Identify errors in 2 statements made about correlation
- Identify a potential lurking variable behind an association
Enjoy! See you all tomorrow!
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