----- Forwarded message from Josh Tabor ----- Although assessing normality (normal quantile plots) is not listed as a topic for the AP exam, many books, including mine (IPS) cover it. Is it really necessary? Looking at the histogram seems to be good enough, although maybe I'm being a bit naive. If it should be done, are there any good data sets which give a clearly non-linear plot? I tried rather unsuccessfully to make one up myself. The outliers, no matter how far away from the rest of the data, still seemed to be on the line. It left me rather frustrated and ready to throw out the whole topic.
----- End of forwarded message from Josh Tabor -----
Let's try a Cauchy distribution. I'll insert comments in CAPS.