OpenStax, Introductory Statistics 2e §12.6 Outliers · Example 3 · Statistics · Regression & correlation
Outliers · Example 3
(a) Draw a scatterplot of the data.
(b) Calculate the least squares line. Write the equation in the form ŷ = a + bx.
(c) Draw the line on the scatterplot.
(d) Find the correlation coefficient. Is it significant?
(e) What is the average CPI for the year 1990?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §12.6 Outliers · Example 3
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.