Tutorial Bar graph drawer in Processing.
Watch this YouTube video for an explanation: https://www.youtube.com/watch?v=XCiKO-Qysqk
Go to this Google spreadsheet for another way to look at the IQ scores data file: https://docs.google.com/spreadsheets/d/1CICKZZw9kBugv-vOCDyW1-2ByHCWwpd6tPnXv9MQ7I4/edit?usp=sharing