APS27-0 LinReg Review

Posljednje ažuriranje about 5 years ago

If you don't remember how to make the scatterplot, watch the video below. (unfortunately not the same numbers)

If you don't remember how to run a linear regression, watch the video below.

If you don't remember how to create the residuals plot, watch the video.

Posljednje ažuriranje about 5 years ago

From Unit 2, the skills you need are:

- Make a scatterplot (calculator and manually)

- Describe a scatterplot (strength, form, direction)

- Find and interpret correlation

- Know when correlation is an appropriate term to use

- Interpret r-squared

- Create a linear model

- Interpret slope

- Interpret y-intercept

- Interpret a residuals plot

Enter the Anxiety Level and Math test score into two lists in your calculator. Do not put the "Student number" into your calculator.

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If you don't remember how to make the scatterplot, watch the video below. (unfortunately not the same numbers)

Make a scatterplot of the data (Zoom -> Stat to adjust the window to see your data). If you get an error, make sure you have the same number of data in both lists, that you only have one plot on, and that your y= screen is cleared out.
Describe the scatterplot (strength, form, direction), and be sure to include a sentence that describes the relationship in context.

If you don't remember how to run a linear regression, watch the video below.

If you don't remember how to create the residuals plot, watch the video.

That test anxiety leads to a lower exam score.

That test anxiety leads to a higher exam score.

That a linear model is appropriate.

That a linear model is not appropriate.

None of these.