Pearson's (r) Limitations
This activity explores two limits of the Pearson's product-moment correlation coefficient (PPMCC), r : Slide for presenting the key ideas are at the bottom of this page. It's important students have explored the applets and Tasks 1 to 3 below for themselves first. (a) Enter the below data in your Graphics Display Calculator (GDC), plot it as a scatter graph, and discuss with your group what functions you think could...