1 / 10

Do Now

Use a Chromebook to explore outliers and the least-squares regression line (LSRL). Learn how outliers influence the LSRL, standard deviation of residuals, and R-squared. Engage in a collaborative activity with a partner using an interactive applet.

garrow
Download Presentation

Do Now

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Do Now • Get a chromebook (share with a partner or group of 3) • Go to website posted on google classroom.

  2. Complete #4cd from homework

  3. Lesson 3.2 Day 4 Outliers and the LSRL

  4. Objectives • Describe how the least-squares regression line, standard deviation of the residuals, and  are influenced by outliers. • Find the slope and y intercept of the least-squares regression line from the means and standard deviations of x and y and their correlation.

  5. Stapplet Activity • Work with a partner on one chromebook

  6. The horizontal and vertical lines in the applet are not the x-axis and y-axis.   • They are the values which represent the mean of all the x values and the mean of all the y values.  So the crosshair of the two lines is the point (mean of x, mean of y).

  7. Pro tip • To remove a point on the applet, simply click on it a second time and it will disappear.

  8. Big Ideas • A good LSRL has a • Low s (standard deviation of residuals) • High (coefficient of determination)

  9. LSRL = =

  10. Check your understanding

More Related