Visually assessing standard deviation (video) | Khan Academy
https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-spread-quantitative/v/visual-standard-deviation
Web- [Instructor] Each dot plot below represents a different set of data. We see that here. Order the dot plots from largest standard deviation, top, to smallest standard deviation, bottom. So, pause this video and see if you can do that or at least if you could rank these from largest standard deviation to smallest standard deviation.
DA: 98 PA: 15 MOZ Rank: 20