Wins day HW

Tomorrow we'll do some classwork and finish up our chapter 7 notes. On Friday we will have a chapter 7 quiz--both some open-ended math problems and a vocab quiz!

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.")

And if you're feeling ambitious, here's a breakdown of Friday's quiz so you can get prepped:

• 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!