https://bjc.edc.org/bjc-r/cur/programming/3-lists/4-graphing/1-bar-graphs.html?topic=nyc_bjc%2F3-lists.topic&course=bjc4nyc.html&novideo&noassignmentÂ
https://www.youtube.com/watch?v=yUIswZ08EPI - Part 1
https://www.youtube.com/watch?v=-mUVTh9L5L0 - Part 2
https://www.youtube.com/watch?v=dysPXpBMPWQ - Part 3
