OpenStax, Contemporary Mathematics §8.8 Scatter Plots, Correlation, and Regression Lines · Example 5 · Statistics · Regression & correlation

Scatter Plots, Correlation, and Regression Lines · Example 5

Suppose you have datasets $x$ and $y$ with the following statistics: $x$ has mean 21 and standard deviation 4, $y$ has mean 8 and standard deviation 2, and their correlation coefficient is −0.4. What’s the equation of the regression line?

~5 minWritten answer · check your work with Lemma

OpenStax, Contemporary Mathematics · §8.8 Scatter Plots, Correlation, and Regression Lines · Example 5

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.