File:IQ curve.png - Wikipedia
Finally statistical significance clearly explained
Sigmoid function - Wikipedia
Example of the template used for displaying belligerents in the
Phase Envelopes - whitson wiki
How we designed page previews for Wikipedia — and what could be done with them in the future, by Nirzar Pangarkar, Down the Rabbit Hole
Pie chart - Wikipedia
Bode plot - Wikipedia
Race and intelligence (test data), Psychology Wiki