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Tuesday, October 21, 2014

Twosday Homework

Good afternoon! Good work today! We've been moving at a solid pace...if we keep it up, we should have a couple weeks left in May to review/study for our AP exam together!
Tonight, please complete the following in your textbook:

Page 193: 35, 47, 49

For those of you who were out today...
  • We learned how to read a computer output to write the regression equation, find R^2, and find r. This shows up in #47 on your homework.
    • The slope is always the coefficient to the x-variable.
    • The y-intercept is the "intercept" or "constant" coefficient.
    • Ignore everything else!
  • We also talked about R^2, the coefficient of determination. To interpret R^2 on your homework, use the writing template below:
    • "_R^2__% of changes in ____(response variable)____are based on changes in ___(explanatory variable)____. Other factors may include ____(describe other contributing factors; consider the context___."
Tomorrow we'll do some AP free-response and multiple choice in groups. Wooo!

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